Gender is the range of characteristics pertaining to, and differentiating between, masculinity and femininity. Depending on the context, these characteristics may include biological sex (i.e. the state of being male, female or intersex), sex-based social structures (including gender roles and other social roles), or gender identity.
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A fourth rule is to observe Protagoras' classification of nouns into male, female and inanimate.
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Gender is a topic of increasing concern within climate change policy and science. Generally, gender approaches to climate change address gender- differentiated consequences of climate change, as well as unequal adaptation capacities and gendered contribution to climate change. Furthermore, the intersection of climate change and gender raises questions regarding the complex and intersecting power relations arising from it. These differences, however, are mostly not due to biological or physical differences, but are formed by the social, institutional and legal context. Subsequently, vulnerability is less an intrinsic feature of women and girls but rather a product of their marginalization. Roehr notes that, while the United Nations officially committed to gender mainstreaming, in practice gender equality is not reached in the context of climate change policies. This is reflected in the fact that discourses of and negotiations over climate change are mostly dominated by men. Some feminist scholars hold that the debate on climate change is not only dominated by men but also primarily shaped in ‘masculine’ principles, which limits discussions about climate change to a perspective that focuses on technical solutions. This perception of climate change hides subjectivity and power relations that actually condition climate-change policy and science, leading to a phenomenon that Tuana terms ‘epistemic injustice’. Similarly, MacGregor attests that by framing climate change as an issue of ‘hard’ natural scientific conduct and natural security, it is kept within the traditional domains of hegemonic masculinity.
Gender and climate change
The Gender-related Development Index (GDI), developed by the United Nations, aims to show the inequalities between men and women in the following areas: long and healthy life, knowledge, and a decent standard of living. The United Nations Development Programme (UNDP) has introduced indicators designed to add a gendered dimension to the Human Development Index (HDI). Additionally, in 1995, the Gender-related Development Index (GDI) and the Gender Empowerment Measure (GEM) were introduced. More recently, in 2010, UNDP introduced a new indicator, the Gender Inequality Index (GII), which was designed to be a better measurement of gender inequality and to improve the shortcomings of GDI and GEM.
 for planning and evaluating development projects to ensure they benefit all sectors of society including women.Gender Evaluation Methodology (APC) has developed a Association for Progressive Communications The  Some organizations working in developing countries and in the development field have incorporated advocacy and empowerment for women into their work. The
Gender equality is also strongly linked to education. The Dakar Framework for Action (2000) set out ambitious goals: to eliminate gender disparities in primary and secondary education by 2005, and to achieve gender equality in education by 2015. The focus was on ensuring girls’ full and equal access to and achievement in good quality basic education. The gender objective of the Dakar Framework for Action is somewhat different from the MDG Goal 3 (Target 1): “Eliminate gender disparity in primary and secondary education, preferably by 2005, and in all levels of education no later than 2015”. MDG Goal 3 does not comprise a reference to learner achievement and good quality basic education, but goes beyond the school level. Studies demonstrate the positive impact of girls’ education on child and maternal health, fertility rates, poverty reduction and economic growth. Educated mothers are more likely to send their children to school.
The MDGs have three goals specifically focused on women: Goal 3, 4 and 5 but women’s issues also cut across all of the goals. These goals overall comprise all aspects of women’s lives including economic, health, and political participation.
- Halve the proportion of people living in extreme poverty at the 1990 level by 2015.
- Achieve universal primary education
- Promote gender equality and empower women
- Reduce child mortality rates
- Improve maternal health
- Combat HIV/AIDS, Malaria and other diseases
- Ensure environmental sustainability
- Global partnership
Researchers at the Overseas Development Institute have highlighted that policy dialogue on the Millennium Development Goals needs to recognize that the gender dynamics of power, poverty, vulnerability and care link all the goals. The various United Nations international women’s conferences in Beijing, Mexico City, Copenhagen, and Nairobi, as well as the development of the Millennium Development Goals in 2000 have taken a GAD approach and holistic view of development. The United Nations Millennium Declaration signed at the United Nations Millennium Summit in 2000 including eight goals that were to be reached by 2015, and although it would be a difficult task to reach them, all of them could be monitored. The eight goals are:
However, just as WID had its critics, so did WAD. Many critics of WAD argued that it failed to sufficiently address the differential power relations between women and men, and tended to overemphasize women’s productive as opposed to reproductive roles. Also, rising criticism of the exclusion of men in WID and WAD led to a new theory termed Gender and Development (GAD). Drawing from insights developed in psychology, sociology, and gender studies, GAD theorists shifted from understanding women’s problems as based on their sex (i.e. their biological differences from men) to understanding them as based on gender – the social relations between women and men, their social construction, and how women have been systematically subordinated in this relationship. At their most fundamental, GAD perspectives link the social relations of production with the social relations of reproduction – exploring why and how women and men are assigned to different roles and responsibilities in society, how these dynamics are reflected in social, economic, and political theories and institutions, and how these relationships affect development policy effectiveness. According to proponents of GAD, women are cast not as passive recipients of development aid, but rather as active agents of change whose empowerment should be a central goal of development policy. In contemporary times, most literature and institutions that are concerned with women's role in development incorporate a GAD perspective, with the United Nations taking the lead of mainstreaming the GAD approach through its system and development policies.
In modern times, the study of gender and development has become a broad field that involves politicians, economists, and human rights activists. Gender and Development, unlike previous theories concerning women in development, includes a broader view of the effects of development on gender including economic, political, and social issues. The theory takes a holistic approach to development and its effects on women and recognizes the negative effects gender blind development policies have had on women. Prior to 1970, it was believed that development affected men and women in the same way and no gendered perspective existed for development studies. However, the 1970s saw a transformation in development theory that sought to incorporate women into existing development paradigms. When Ester Boserup published her book, Woman’s Role in Economic Development, there was a realization that development affected men and women differently and there began to be more of a focus on women and development. Boserup argued that women were marginalized in the modernization process and practices of growth, development, and development policy threatened to actually make women worse off. Boserup’s work translated into the beginning of a larger discourse termed Women in Development (WID) coined by the Women’s Committee of the Washington DC Chapter of the Society for International Development, a network of female development professionals. The primary goal of WID was to include women into existing development initiatives, since it was argued that women were marginalized and excluded from the benefits of development. In so doing, the WID approach pointed out that the major problem to women’s unequal representation and participation were male biased and patriarchal development policies. In short, the WID approach blamed patriarchy, which did not consider women’s productive and reproductive work. In fact, women were tied to domestic work hence were almost invisible in development programs. The WID approach, however, began to gain criticism as ignoring how women’s economic marginalization was linked to the development model itself. Some feminists argued that the key concept for women and development should be subordination in the context of new capitalist forms of insecure and hierarchical job structures, rather than marginalization as WID approaches emphasized. The rise of criticism against the WID approach led to the emergence of a new theory, that of Women and Development (WAD).
Gender, and particularly the role of women is widely recognized as vitally important to international development issues. This often means a focus on gender-equality, ensuring participation, but includes an understanding of the different roles and expectation of the genders within the community.
Gender and economic development
According to general strain theory, studies suggest that gender differences between individuals can lead to externalized anger that may result in violent outbursts. These violent actions related to gender inequality can be measured by comparing violent neighborhoods to non-violent neighborhoods. By noticing the independent variables (neighborhood violence) and the dependent variable (individual violence), it's possible to analyze gender roles. The strain in the general strain theory is the removal of a positive stimuli and or the introduction of a negative stimuli, which would create a negative affect (strain) within individual, which is either inner-directed (depression/guilt) or outer-directed (anger/frustration), which depends on whether the individual blames themselves or their environment. Studies reveal that even though males and females are equally likely to react to a strain with anger, the origin of the anger and their means of coping with it can vary drastically. Males are likely to put the blame on others for adversity and therefore externalize feelings of anger. Females typically internalize their angers and tend to blame themselves instead. Female internalized anger is accompanied by feelings of guilt, fear, anxiety and depression. Women view anger as a sign that they've somehow lost control, and thus worry that this anger may lead them to harm others and/or damage relationships. On the other end of the spectrum, men are less concerned with damaging relationships and more focused on using anger as a means of affirming their masculinity. According to the general strain theory, men would more likely engage in aggressive behavior directed towards others due to externalized anger whereas women would direct their anger towards themselves rather than others.
General strain theory
Gender and Development (GAD) is a holistic approach to give aid to countries where gender inequality has a great effect of not improving the social and economic development. It is a program focused on the gender development of women to empower them and decrease the level of inequality between men and women.
Gender inequality is most common in women dealing with poverty. Many women must shoulder all the responsibility of the household because they must take care of the family. Oftentimes this may include tasks such as tilling land, grinding grain, carrying water and cooking. Also, women are more likely to earn low incomes because of gender discrimination, as men are more likely to receive higher pay, have more opportunities, and have overall more political and social capital then women. Approximately, 75% of world's women are unable to get authorize bank loans because they have unstable jobs. It shows that there are many women in the world's population but only a few represent world's wealth. In many countries, the financial sector largely neglects women even though they play an important role in the economy, as Nena Stoiljkovic pointed out in D+C Development and Cooperation. In 1978 Diana M. Pearce coined the term feminization of poverty to describe the problem of women having higher rates of poverty. Women are more vulnerable to chronic poverty because of gender inequalities in the distribution of income, property ownership, credit, and control over earned income. Resource allocation is typically gender-biased within households, and continue on a higher level regarding state institutions.
Gender and poverty
One of the several forms of the Hindu God Shiva, is Ardhanarishwar (literally half-female God). Here Shiva manifests himself so that the left half is Female and the right half is Male. The left represents Shakti (energy, power) in the form of Goddess Parvati (otherwise his consort) and the right half Shiva. Whereas Parvati is the cause of arousal of Kama (desires), Shiva is the killer. Shiva is pervaded by the power of Parvati and Parvati is pervaded by the power of Shiva. While the stone images may seem to represent a half-male and half-female God, the true symbolic representation is of a being the whole of which is Shiva and the whole of which is Shakti at the same time. It is a 3-D representation of only shakti from one angle and only Shiva from the other. Shiva and Shakti are hence the same being representing a collective of Jnana (knowledge) and Kriya (activity). Adi Shankaracharya, the founder of non-dualistic philosophy (Advaita–"not two") in Hindu thought says in his "Saundaryalahari"—Shivah Shaktayaa yukto yadi bhavati shaktah prabhavitum na che devum devona khalu kushalah spanditam api " i.e., It is only when Shiva is united with Shakti that He acquires the capability of becoming the Lord of the Universe. In the absence of Shakti, He is not even able to stir. In fact, the term "Shiva" originated from "Shva," which implies a dead body. It is only through his inherent shakti that Shiva realizes his true nature. This mythology projects the inherent view in ancient Hinduism, that each human carries within himself both female and male components, which are forces rather than sexes, and it is the harmony between the creative and the annihilative, the strong and the soft, the proactive and the passive, that makes a true person. Such thought, leave alone entail gender equality, in fact obliterates any material distinction between the male and female altogether. This may explain why in ancient India we find evidence of homosexuality, bisexuality, androgyny, multiple sex partners and open representation of sexual pleasures in artworks like the Khajuraho temples, being accepted within prevalent social frameworks.—
In Christianity, God is described in masculine terms and the Church has historically been described in feminine terms. On the other hand, Christian theology in many churches distinguishes between the masculine images used of God (Father, King, God the Son) and the reality they signify, which transcends gender, embodies all the virtues of both genders perfectly, which may be seen through the doctrine of Imago Dei. In the New Testament, Jesus at several times mentions with the masculine pronoun i.e. John 15:26 among other verses. Hence, the Father, the Son and the Holy Spirit (i.e. Trinity) are all mentioned with the masculine pronoun; though the exact meaning of the masculinity of the Christian triune God is contended.
In Judaism, God is traditionally described in the masculine, but in the mystical tradition of the Kabbalah, the Shekhinah represents the feminine aspect of God's essence. However, Judaism traditionally holds that God is completely non-corporeal, and thus neither male nor female. Conceptions of the gender of God notwithstanding, traditional Judaism places a strong emphasis on individuals following Judaism's traditional gender roles, though many modern denominations of Judaism strive for greater egalitarianism.
In Taoism, yin and yang are considered feminine and masculine, respectively. The Taijitu and concept of the Zhou period reach into family and gender relations. Yin is female and yang is male. They fit together as two parts of a whole. The male principle was equated with the sun: active, bright, and shining; the female principle corresponds to the moon: passive, shaded, and reflective. Male toughness was balanced by female gentleness, male action and initiative by female endurance and need for completion, and male leadership by female supportiveness.
According to Kati Niemelä of the Church Research Institute, women are universally more religious than men. They believe that the difference in religiousity between genders is due to biological differences, for instance usually people seeking security in life are more religious, and as men are considered to be greater risk takers than women, they are less religious. Although religious fanaticism is more often seen in men than women.
This topic includes internal and external religious issues such as gender of God and deities creation myths about human gender, roles and rights (for instance, leadership roles especially ordination of women, sex segregation, gender equality, marriage, abortion, homosexuality)
Gender and religion
According to Londa Schiebinger, many have argued that science should have a gender. Additionally, "Sir Francis Bacon, the seventeenth-century English ideologue, called for the Royal Society of London to "raise a masculine philosophy". Karl Joel, 19th century German historian of philosophy, desired to return to "manly philosophy" and "applauded the arrival of a masculine epoch". On a different perspective, specifically, the female perspective, Mary Wollstonecraft, "in her efforts to create equality between the sexes, encouraged women to become "more masculine and respectable". On board of supporting the notion that science was masculine, was Evelyn Fox Keller, a feminist American physicist, "declared that science is "masculine," not only in the person of its practitioners but in its ethos and substance." Gender is the prime reason in which women feel estranged and left out of the realm of science. As for women who did participate within science, shadowed the masculine voice in their publications or utilized their male partners to carry out their own findings of science. Society played a leading and influential role into women in the public and private sphere. As more women entered the primatology sciences, in which they were to leave society behind and delve deep into adapting within the dark premises of the wild jungles where years passed by them. Once women were allowed within the public sphere of science, they became secretive about their pregnancies and "took trips for their work", to indulge in giving birth without experiencing the negative stigma of society. Some women disguised themselves in looking like men and experienced the outside societal judgments of working alongside a male scientists.
Gender and science gender
- Most languages include terms that are used asymmetrically in reference to men and women. Concern that current language may be biased in favor of men has led some authors in recent times to argue for the use of a more Gender-neutral vocabulary in English and other languages.
- Several languages attest the use of different vocabulary by men and women, to differing degrees. See, for instance, Gender differences in spoken Japanese. The oldest documented language, Sumerian, records a distinctive sub-language only used by female speakers. Conversely, many Indigenous Australian languages have distinctive registers with limited lexis used by men in the presence of their mothers-in-law (see Avoidance speech).
- Several languages such as Persian are gender-neutral. In Persian the same word is used in reference to men and women. Verbs, adjectives and nouns are not gendered. (See Gender-neutrality in genderless languages)
- Grammatical gender is a property of some languages in which every noun is assigned a gender, often with no direct relation to its meaning. For example, the word for "girl" is muchacha (grammatically feminine) in Spanish, Mädchen (grammatically neuter) in German, and cailín (grammatically masculine) in Irish.
- The term "grammatical gender" is often applied to more complex noun class systems. This is especially true when a noun class system includes masculine and feminine as well as some other non-gender features like animate, edible, manufactured, and so forth. An example of the latter is found in the Dyirbal language. A system traditionally called "gender" appears in the Ojibwe language, which distinguishes between animate and inanimate, but since this does not exhibit a masculine/feminine distinction it might be better described by "noun class." Likewise, Sumerian distinguishes between personal (human and divine) and impersonal (all other) noun classes, but these classes have traditionally been known as genders.
Natural languages often make gender distinctions. These may be of various kinds, more or less loosely associated by analogy with various actual or perceived differences between men and women.
Gender and languages
Gender and society
 Recognition of an intermediate gender is controversial even amongst intersex organisations, such as
Australian Commonwealth guidelines on the recognition of sex and gender, passed the Sex Discrimination Amendment Act on June 25, 2013 without a vote. It defined the 'X' as a gender marker which would encompass "indeterminate/intersex/unspecified" categories. The policy extends the use an 'X' gender marker to any adult who chooses that option and can obtain a certifying letter from a doctor or psychologist, in all dealings with the Commonwealth government and its agencies. The option is being introduced over a three year period. The guidelines also clarify that the federal government will now collect data on gender, rather than sex. The "gender identity" attribute protects trans people with non-binary identities. However, it does contain an exemption in record keeping. Federal guidelines on sex and gender recognition provide for the implementation of the "X" classification across federal departments and agencies.
In 2011, the Australian Passport Office introduced new guidelines for issuing of passports with a new gender, and broadened availability of an X descriptor to all individuals with certified "indeterminate" sex or gender, issued by a medical doctor. The revised policy stated that "sex reassignment surgery is not a prerequisite to issue a passport in a new gender. Birth or citizenship certificates do not need to be amended."
Australian government policy between 2003 and 2011 was to issue passports with an 'X' marker only to people who could "present a birth certificate that notes their sex as indeterminate".
Alex MacFarlane was reported as receiving a passport with an 'X' sex descriptor in early 2003. This was stated by the West Australian to be on the basis of a challenge by MacFarlane, using an indeterminate birth certificate issued by the State of Victoria.
Australian government policy on indeterminate gender
The first person known to be legally of indeterminate gender (that is, neither man or woman in legal terms) is Alex MacFarlane, from Australia, whose status was reported in January 2003.
It is also possible in federal systems for the same person to have one gender under state law and a different gender under federal law.
The ability to change legal gender for transgender people in particular has given rise to the phenomena in some jurisdictions of the same person having different genders for the purposes of different areas of the law. For example, in Australia prior to the Re Kevin decisions, transsexual people could be recognized as having the genders they identified with under many areas of the law, including social security law, but not for the law of marriage. Thus, for a period, it was possible for the same person to have two different genders under Australian law.
Gender assignment, when there are indications that genital sex might not be decisive in a particular case, is normally not defined by a single definition, but by a combination of conditions, including chromosomes and gonads. Thus, for example, in many jurisdictions a person with XY chromosomes but female gonads could be recognized as female at birth.
The question then arises as to what legally determines whether someone is female or male. In most cases this can appear obvious, but the matter is complicated for intersex or transgender people. Different jurisdictions have adopted different answers to this question. Almost all countries permit changes of legal gender status in cases of intersexualism, when the gender assignment made at birth is determined upon further investigation to be biologically inaccurate—technically, however, this is not a change of status per se. Rather, it is recognition of a status deemed to exist but unknown from birth. Increasingly, jurisdictions also provide a procedure for changes of legal gender for transgender people.
A person's sex as male or female has legal significance—sex is indicated on government documents, and laws provide differently for men and women. Many pension systems have different retirement ages for men or women. Marriage is usually only available to opposite-sex couples; in some countries, there are same-sex marriage laws.
The difference between the sociological and popular definitions of gender involve a different dichotomy and focus. For example, the sociological approach to "gender" (social roles: female versus male) focuses on the difference in (economic/power) position between a male CEO (disregarding the fact that he is heterosexual or homosexual) to female workers in his employ (disregarding whether they are straight or gay). However the popular sexual self-conception approach (self-conception: gay versus straight) focuses on the different self-conceptions and social conceptions of those who are gay/straight, in comparison with those who are straight (disregarding what might be vastly differing economic and power positions between female and male groups in each category). There is then, in relation to definition of and approaches to "gender", a tension between historic feminist sociology and contemporary homosexual sociology.
The conception that people are gendered rather than sexed also coincides with Judith Butler’s theories of gender performativity. Butler argues that gender is not an expression of what one is, but rather something that one does. It follows then, that if gender is acted out in a repetitive manner it is in fact re-creating and effectively embedding itself within the social consciousness. Contemporary sociological reference to male and female gender roles typically uses masculinities and femininities in the plural rather than singular, suggesting diversity both within cultures as well as across them.
Gender conventions play a large role in attributing masculine and feminine characteristics to a fundamental biological sex. Socio-cultural codes and conventions, the rules by which society functions, and which are both a creation of society as well as a constituting element of it, determine the allocation of these specific traits to the sexes. These traits provide the foundations for the creation of hegemonic gender difference. It follows then, that gender can be assumed as the acquisition and internalisation of social norms. Individuals are therefore socialized through their receipt of society’s expectations of 'acceptable' gender attributes that are flaunted within institutions such as the family, the state and the media. Such a notion of 'gender' then becomes naturalized into a person’s sense of self or identity, effectively imposing a gendered social category upon a sexed body.
Looking at gender through a Foucauldian lens, gender is transfigured into a vehicle for the social division of power. Gender difference is merely a construct of society used to enforce the distinctions made between what is assumed to be female and male, and allow for the domination of masculinity over femininity through the attribution of specific gender-related characteristics. "The idea that men and women are more different from one another than either is from anything else, must come from something other than nature… far from being an expression of natural differences, exclusive gender identity is the suppression of natural similarities."
- The construction of divisions along the lines of gender, such as those produced by labor, power, family, the state, even allowed behaviors and locations in physical space
- The construction of symbols and images such as language, ideology, dress and the media, that explain, express and reinforce, or sometimes oppose, those divisions
- Interactions between men and women, women and women and men and men that involve any form of dominance and submission. Conversational theorists, for example, have studied the way that interruptions, turn taking and the setting of topics re-create gender inequality in the flow of ordinary talk
- The way that the preceding three processes help to produce gendered components of individual identity, i.e., the way they create and maintain an image of a gendered self
- Gender is implicated in the fundamental, ongoing processes of creating and conceptualising social structures.
Some believe society is constructed in a way that splits gender into a dichotomy via social organisations that constantly invent and reproduce cultural images of gender. Joan Acker believes gendering occurs in at least five different interacting social processes:
Contemporary socialisation theory proposes the notion that when a child is first born it has a biological sex but no social gender. As the child grows, "...society provides a string of prescriptions, templates, or models of behaviors appropriate to the one sex or the other," which socialises the child into belonging to a culturally specific gender. There is huge incentive for a child to concede to their socialisation with gender shaping the individual’s opportunities for education, work, family, sexuality, reproduction, authority, and to make an impact on the production of culture and knowledge. Adults who do not perform these ascribed roles are perceived from this perspective as deviant and improperly socialized.
Social theorists have sought to determine the specific nature of gender in relation to biological sex and sexuality, with the result being that culturally established gender and sex have become interchangeable identifications that signify the allocation of a specific 'biological' sex within a categorical gender. The second wave feminist view that gender is socially constructed and hegemonic in all societies, remains current in some literary theoretical circles, Kira Hall and Mary Bucholtz publishing new perspectives as recently as 2008.
A core research area within sociology is the way human behavior operates on itself, in other words, how the behavior of one group or individual influences the behavior of other groups or individuals. Starting in the late 20th century, the feminist movement has contributed extensive study of gender and theories about it, notably within sociology but not restricted to it.
Many of the more complicated human behaviors are influenced by both innate factors and by environmental ones, which include everything from genes, gene expression, and body chemistry, through diet and social pressures. A large area of research in behavioral psychology collates evidence in an effort to discover correlations between behavior and various possible antecedents such as genetics, gene regulation, access to food and vitamins, culture, gender, hormones, physical and social development, and physical and social environments.
Society and behaviors
Two of the main fields that study brain structure, biological (and other) causes and behavioral (and other) results are brain neurology and biological psychology. Cognitive science is another important discipline in the field of brain research.
It has also been demonstrated that brain processing responds to the external environment. Learning, both of ideas and behaviors, appears to be coded in brain processes. It also appears that in several simplified cases this coding operates differently, but in some ways equivalently, in the brains of men and women. For example, both men and women learn and use language; however, bio-chemically, they appear to process it differently. Differences in female and male use of language are likely reflections both of biological preferences and aptitudes, and of learned patterns.
A sexual dimorphism in levels of expression in brain tissue was observed by quantitative real-time PCR, with females presenting an up to 2-fold excess in the abundance of PCDH11X transcripts. We relate these findings to sexually dimorphic traits in the human brain. Interestingly, PCDH11X/Y gene pair is unique to Homo sapiens, since the X-linked gene was transposed to the Y chromosome after the human–chimpanzee lineages split.—
Grey matter is used for information processing, while white matter consists of the connections between processing centers. Other differences are measurable but less pronounced. Most of these differences are produced by hormonal activity, ultimately derived from the Y chromosome and sexual differentiation. However, differences that arise directly from gene activity have also been observed.
"It is well established that men have a larger cerebrum than women by about 8–10% (Filipek et al., 1994; Nopoulos et al., 2000; Passe et al., 1997a,b; Rabinowicz et al., 1999; Witelson et al., 1995)." However, what is functionally relevant are differences in composition and "wiring". Richard J. Haier and colleagues at the universities of New Mexico and California (Irvine) found, using brain mapping, that men have more grey matter related to general intelligence than women, and women have more white matter related to intelligence than men – the ratio between grey and white matter is 4% higher for men than women.
The study of genetics is particularly inter-disciplinary. It is relevant to almost every biological science. It is investigated in detail by molecular level sciences, and itself contributes details to high level abstractions like evolutionary theory.
Chromosomes were likened to books (above), also like books they have been studied at more detailed levels. They contain "sentences" called genes. In fact, many of these sentences are common to multiple species. Sometimes they are organized in the same order, other times they have been "edited"—deleted, copied, changed, moved, even relocated to another "book", as species evolve. Genes are a particularly important part of understanding biological processes because they are directly associated with observable objects, outside chromosomes, called proteins, whose influence on cell chemistry can be measured. In some cases genes can also be directly associated with differences clear to the naked eye, like eye-color itself. Some of these differences are sex specific, like hairy ears. The "hairy ear" gene might be found on the Y chromosome, which explains why only men tend to have hairy ears. However, sex-limited genes on any chromosome can be expressed and "say", for example, "if you are in a male body do X, otherwise do not." The same principle explains why chimpanzees and humans are distinct, despite sharing nearly all their genes.
Gender studies is a field of interdisciplinary study and academic field devoted to gender, gender identity and gendered representation as central categories of analysis. This field includes Women's studies (concerning women, feminity, their gender roles and politics, and feminism), Men's studies (concerning men, masculinity, their gender roles, and politics), and LGBT studies. Sometimes Gender studies is offered together with Study of Sexuality. These disciplines study gender and sexuality in the fields of literature and language, history, political science, sociology, anthropology, cinema and media studies, human development, law, and medicine. It also analyses race, ethnicity, location, nationality, and disability.
The platypus has a complex hybrid system, the male has ten sex chromosomes, half X and half Y.
The human XY system is not the only sex determination system. Birds typically have a reverse, ZW system—males are ZZ and females ZW. Whether male or female birds influence the sex of offspring is not known for all species. Several species of butterfly are known to have female parent sex determination.
Androgen insensitivity syndrome (AIS) is an example of a DSD that also illustrates that female development is the default for humans. Although having one X and one Y chromosome, some people are biologically insensitive to the androgens produced by their testes. As a result, they follow the normal human processes that results in a female. Women who are XY report identifying as a woman—feeling and thinking like a woman—and, where their biology is completely insensitive to masculinizing factors, externally they look identical to other women. Unlike other women, however, they cannot produce ova, because they do not have ovaries.
In humans, the "default" processes of reproduction result in an individual with female characteristics. An intact Y-chromosome contains what is needed to "reprogram" the processes sufficiently to produce male characteristics, leading to sexual differentiation. Part of the Y-chromosome, the Sex-determining Region Y (SRY), causes what would normally become ovaries to become testes. These, in turn, produce male hormones called androgens. However, several points in the processes have been identified where variations can result in people with atypical characteristics, including atypical sexual characteristics. Terminology for atypical sexual characteristics has not stabilized. Disorder of sexual development (DSD) is used by some in preference to intersex, which is used by others in preference to pseudohermaphroditism.
Although sexual reproduction is defined at the cellular level, key features of sexual reproduction operate within the structures of the gamete cells themselves. Notably, gametes carry very long molecules called DNA that the biological processes of reproduction can "read" like a book of instructions. In fact, there are typically many of these "books", called chromosomes. Human gametes usually have 23 chromosomes, 22 of which are common to both sexes. The final chromosomes in the two human gametes are called sex chromosomes because of their role in sex determination. Ova always have the same sex chromosome, labelled X. About half of spermatozoa also have this same X chromosome, the rest have a Y-chromosome. At fertilization the gametes fuse to form a cell, usually with 46 chromosomes, and either XX female or XY male, depending on whether the sperm carried an X or a Y chromosome. Some of the other possibilities are listed above.
- social conformity with expectations for either of the two main sexes;
- dimorphic physical characteristics, other than primary characteristics (such as body hair, development of breasts); certain changes in brain structure due to organizing effects of sex hormones (Is it useful to view the brain as a secondary sexual characteristic?);
- genitals (genital development);
- primary sexual characteristics:
- androgens (including testosterone, dihydrotestosterone, etc.), estrogens (including estradiol, estriol, etc.), antiandrogens, progestogens and others;
- testicles; ovaries; ovarian and testicular tissues, not in same gonad (true hermaphroditism), ovotestes, or other gonadal dysgenesis;
- 46,XX (biological female); 46,XY (biological male) ;45,X (Turner's syndrome); 47,XXY (Klinefelter syndrome); 47,XYY (XYY syndrome); 47,XXX (XXX syndrome); 48,XXYY (XXYY syndrome); 46,XX/XY mosaic; other mosaic;
The following systematic list gender taxonomy illustrates the kinds of diversity that have been studied and reported in medical literature. It is placed in roughly chronological order of biological and social development in the human life cycle. The earlier stages are more purely biological and the latter are more dominantly social. Causation is known to operate from chromosome to gonads, and from gonads to hormones. It is also significant from brain structure to gender identity (see Money quote above). Brain structure and processing (biological) that may explain erotic preference (social), however, is an area of ongoing research. Terminology in some areas changes quite rapidly as knowledge grows.
Fossil records indicate that sexual reproduction has been occurring for at least one billion years. However, the reason for the initial evolution of sex, and the reason it has survived to the present are still matters of debate, there are many plausible theories. It appears that the ability to reproduce sexually has evolved independently in various species on many occasions. There are cases where it has also been lost, notably among the Fungi Imperfecti. The blacktip shark (Carcharhinus limbatus), flatworm (Dugesia tigrina) and some other species can reproduce either sexually or asexually depending on various conditions.
What is considered defining of sexual reproduction is the difference between the gametes and the binary nature of fertilization. Multiplicity of gamete types within a species would still be considered a form of sexual reproduction. However, of more than 1.5 million living species, recorded up to about the year 2000, "no third sex cell—and so no third sex—has appeared in multi-cellular animals." Why sexual reproduction has an exclusively binary gamete system is not yet known. A few rare species that push the boundaries of the definitions are the subject of active research for light they may shed on the mechanisms of the evolution of sex. For example, the most toxic insect, the harvester ant Pogonomyrmex, has two kinds of female and two kinds of male. One hypothesis is that the species is a hybrid, evolved from two closely related preceding species.
An individual that produces both types of gametes is called hermaphrodite (a name applicable also to people with one testis and one ovary). In some species hermaphrodites can self-fertilize (see Selfing), in others they can achieve fertilization with females, males or both. Some species, like the Japanese Ash, Fraxinus lanuginosa, only have males and hermaphrodites, a rare reproductive system called androdioecy. Gynodioecy is also found in several species. Human hermaphrodites are typically, but not always, infertile.
Sexual reproduction is a common method of producing a new individual within various species. In sexually reproducing species, individuals produce special kinds of cells (called gametes) whose function is specifically to fuse with one unlike gamete and thereby to form a new individual. This fusion of two unlike gametes is called fertilization. By convention, where one type of gamete cell is physically larger than the other, it is associated with female sex. Thus an individual that produces exclusively large gametes (ova in humans) is called female, and one that produces exclusively small gametes (spermatozoa in humans) is called male.
Sexual differentiation demands the fusion of gametes that are morphologically different.—Cyril Dean Darlington, Recent Advances in Cytology, 1937.
There are studies concerning women who have a condition called congenital adrenal hyperplasia, which leads to the overproduction of the masculine sex hormone, androgen. These women usually have ordinary female appearances (though nearly all girls with congenital adrenal hyperplasia (CAH) have corrective surgery performed on their genitals). However, despite taking hormone-balancing medication given to them at birth, these females are statistically more likely to be interested in activities traditionally linked to males than female activities. Psychology professor and CAH researcher Dr. Sheri Berenbaum attributes these differences to an exposure of higher levels of male sex hormones in utero.
Although causation from the biological—genetic and hormonal—to the behavioral has been broadly demonstrated and accepted, Money is careful to also note that understanding of the causal chains from biology to behavior in sex and gender issues is very far from complete. For example, the existence of a "gay gene" has not been proven, but such a gene remains an acknowledged possibility.
Money refers to attempts to distinguish a difference between biological sex and social gender as "scientifically debased", because of our increased knowledge of a continuum of dimorphic features (Money's word is "dipolar") that link biological and behavioral differences. These extend from the exclusively biological "genetic" and "prenatal hormonal" differences between men and women, to "postnatal" features, some of which are social, but others have been shown to result from "post-pubertal hormonal" effects.
The term "gender role" appeared in print first in 1955. The term gender identity was used in a press release, November 21, 1966, to announce the new clinic for transsexuals at The Johns Hopkins Hospital. It was disseminated in the media worldwide, and soon entered the vernacular. The definitions of gender and gender identity vary on a doctrinal basis. In popularized and scientifically debased usage, sex is what you are biologically; gender is what you become socially; gender identity is your own sense or conviction of maleness or femaleness; and gender role is the cultural stereotype of what is masculine and feminine. Causality with respect to gender identity disorder is sub-divisible into genetic, prenatal hormonal, postnatal social, and post-pubertal hormonal determinants, but there is, as yet, no comprehensive and detailed theory of causality. Gender coding in the brain is bipolar. In gender identity disorder, there is discordance between the natal sex of one's external genitalia and the brain coding of one's gender as masculine or feminine.
The biology of gender became the subject of an expanding number of studies over the course of the late 20th century. One of the earliest areas of interest was what is now called gender identity disorder (GID). Studies in this, and related areas, inform the following summary of the subject by John Money. He stated:
Biological factors and views
Thus it may be said that determining the sex of children is actually a cultural act, and the sex of children is in fact socially constructed. Therefore, it is possible that although sex seems fixed and only related to biology, it may be actually deeply related to historical and social factors as well as biology and other natural sciences.
A group of physicians from Saudi Arabia recently reported on several cases of XX intersex children with congenital adrenal hyperplasia (CAH), a genetically inherited malfunction of the enzymes that aid in making steroid hormones. [...] In the United States and Europe, such children, because they have the potential to bear children later in life, are usually raised as girls. Saudi doctors trained in this European tradition recommended such a course of action to the Saudi parents of CAH XX children. A number of parents, however, refused to accept the recommendation that their child, initially identified as a son, be raised instead as a daughter. Nor would they accept feminizing surgery for their child. [...] This was essentially an expression of local community attitudes with [...] the preference for male offspring., she introduces the following example: Sexing the body: gender politics and the construction of sexuality In her book, titled  She also mentions the language the doctors use when they talk with the parents of the intersexuals. After describing how the doctors inform parents about the intersexuality, she asserts that because the doctors believe that the intersexuals are actually male or female, they tell the parents of the intersexuals that it will take a little bit more time for the doctors to determine whether the infant is a boy or a girl. That is to say, the doctors' behavior is formulated by the cultural gender assumption that there are only two sexes. Lastly, she maintains that the differences in the ways in which the medical professionals in different regions treat intersexual people also give us a good example of how sex is socially constructed. Then she adds how gender assumptions affects the scientific study of sex by presenting the research of intersexuals by John Money et al., and she concludes that "they never questioned the fundamental assumption that there are only two sexes, because their goal in studying intersexuals was to find out more about 'normal' development." shape, even as they reflect, the ways we structure our social system and polity; they also shape and reflect our understanding of our physical bodies."gender difference, describes how the doctors address the issues of intersexuality. She starts her argument with an example of the birth of an intersexual individual and maintains "[o]ur conceptions of the nature of gender studies, a professor of biology and Anne Fausto-Sterling children, intersexIn addition, drawing from the empirical research of
With regard to history, Linda Nicholson, a professor of history and genitals and female genitals were considered inherently the same in Western society until the 18th century. At that time, female genitals were regarded as incomplete male genitals, and the difference between the two was conceived as a matter of degree. In other words, there was a gradation of physical forms, or a spectrum. Therefore, the current perspective toward sex, which is to consider women and men and their typical genitalia as the only possible natural options, came into existence through historical, not biological roots.
Butler argues that "bodies only appear, only endure, only live within the productive constraints of certain highly gendered regulatory schemas," and sex is "no longer as a bodily given on which the construct of gender is artificially imposed, but as a cultural norm which governs the materialization of bodies." Marria Lugones states that, among the Yoruba people, there was no concept of gender and no gender system at all before colonialism. She argues that colonial powers used a gender system as a tool for domination and fundamentally changing social relations among the indigenous.
It would make no sense, then, to define gender as the cultural interpretation of sex, if sex is itself a gender-centered category. Gender should not be conceived merely as the cultural inscription of meaning based on a given sex (a juridical conception); gender must also designate the very apparatus of production whereby the sexes themselves are established. [...] This production of sex as the pre-discursive should be understood as the effect of the apparatus of cultural construction designated by gender.She continues:
However, there are scholars who argue that sex is also socially constructed. For example, Judith Butler, a professor of rhetoric and comparative literature, states that "perhaps this construct called 'sex' is as culturally constructed as gender; indeed, perhaps it was always already gender, with the consequence that the distinction between sex and gender turns out to be no distinction at all."
Scholars generally regard gender as a social construct, and various researchers, including many  Thus, sex is regarded as a category studied in biology (natural sciences), while gender is studied in humanities and social sciences. Lynda Birke, a feminist biologist, maintains "'biology' is not seen as something which might change." Therefore, it is stated that sex is something that does not change, while gender can change according to social structure.
Social construction of sex hypotheses
With regard to gender studies, Jacquetta Newman states that although sex is determined biologically, the ways in which people express gender is not. Gendering is a socially constructed process based on culture, though often cultural expectations around women and men have a direct relationship to their biology. Because of this, Newman argues, many privilege sex as being a cause of oppression and ignore other issues like race, ability, poverty, etc. Current gender studies classes seek to move away from that and examine the intersectionality of these factors in determining people's lives. She also points out that other non-Western cultures do not necessarily have the same views of gender and gender roles. Newman also debates the meaning of equality, which is often considered the goal of feminism; she believes that equality is a problematic term because it can mean many different things, such as people being treated identically, differently, or fairly based on their gender. Newman believes this is problematic because there is no unified definition as to what equality means or looks like, and that this can be significantly important in areas like public policy.
American political scientist Karen Beckwith addresses the concept of gender within political science arguing that a "common language of gender" exists and that it must be explicitly articulated in order to build upon it within the political science discipline. Beckwith describes two ways in which the political scientist may employ 'gender' when conducting empirical research: "gender as a category and as a process." Employing gender as a category allows for political scientists "to delineate specific contexts where behaviours, actions, attitudes and preferences considered masculine or feminine result in particular" political outcomes. It may also demonstrate how gender differences, not necessarily corresponding precisely with sex, may "constrain or facilitate political" actors. Gender as a process has two central manifestations in political science research, firstly in determining "the differential effects of structures and policies upon men and women," and secondly, the ways in which masculine and feminine political actors "actively work to produce favorable gendered outcomes".
Political scientist  Feminist scholars in Political Science began employing gender as an analytical category, which highlighted "social and political relations neglected by mainstream accounts". However, Hawkesworth states "feminist political science has not become a dominant paradigm within the discipline".
Critiques of feminist theory by Warren Farrell have given broader consideration to findings from a ten-year study of courtship by Buss. Both perspectives on gendering are integrated in Attraction Theory, a theoretical framework developed by Dr Rory Ridley-Duff illustrating how courtship and parenting obligations (rather than male dominance) act as a generative mechanism that produces and reproduces a range of gender identities.
Hurst comments that in a society where we present our genders so distinctly, there can often be severe consequences for breaking these cultural norms. Many of these consequences are rooted in discrimination based on sexual orientation. Gays and lesbians are often discriminated against in our legal system because of societal prejudices. Hurst describes how this discrimination works against people for breaking gender norms, no matter what their sexual orientation is. He says that "courts often confuse sex, gender, and sexual orientation, and confuse them in a way that results in denying the rights not only of gays and lesbians, but also of those who do not present themselves or act in a manner traditionally expected of their sex". This prejudice plays out in our legal system when a man or woman is judged differently because he or she does not present the "correct" gender.
Charles E. Hurst states that some people think sex will, "...automatically determine one's gender demeanor and role (social) as well as one's sexual orientation (sexual attractions and behavior). Gender sociologists believe that people have cultural origins and habits for dealing with gender. For example, Michael Schwalbe believes that humans must be taught how to act appropriately in their designated gender to fill the role properly, and that the way people behave as masculine or feminine interacts with social expectations. Schwalbe comments that humans "are the results of many people embracing and acting on similar ideas". People do this through everything from clothing and hairstyle to relationship and employment choices. Schwalbe believes that these distinctions are important, because society wants to identify and categorize people as soon as we see them. They need to place people into distinct categories to know how we should feel about them.
In gender studies the term gender refers to proposed social and cultural constructions of masculinities and femininities. In this context, gender explicitly excludes reference to biological differences, to focus on cultural differences. This emerged from a number of different areas: in sociology during the 1950s; from the theories of the psychoanalyst Jacques Lacan; and in the work of French psychoanalysts like Julia Kristeva, Luce Irigaray, and American feminists such as Judith Butler. Those who followed Butler came to regard gender roles as a practice, sometimes referred to as "performative".
Within feminist theory, terminology for gender issues developed over the 1970s. In the 1974 edition of Masculine/Feminine or Human, the author uses "innate gender" and "learned sex roles", but in the 1978 edition, the use of sex and gender is reversed. By 1980, most feminist writings had agreed on using gender only for socioculturally adapted traits.
Biologist and feminist academic Anne Fausto-Sterling rejects the discourse of biological versus social determinism and advocates a deeper analysis of how interactions between the biological being and the social environment influence individuals' capacities. The philosopher and feminist Simone de Beauvoir applied existentialism to women's experience of life: "One is not born a woman, one becomes one." In context, this is a philosophical statement. However, it may be analyzed in terms of biology—a girl must pass puberty to become a woman—and sociology, as a great deal of mature relating in social contexts is learned rather than instinctive.
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Feminism theory and gender studies
Two instruments incorporating the multidimensional of masculinity and femininity have dominated gender identity research: The Bem Sex Role Inventory (BSRI) and the Personal Attributes Questionnaire (PAQ). Both instruments categorize individuals as either being sex typed (males report themselves as identifying primarily with masculine traits, females report themselves as identifying primarily with feminine traits), cross sex-typed (males report themselves as identifying primarily with feminine traits, females report themselves as identifying primarily with masculine traits), androgynous (either males or females who report themselves as high on both masculine and feminine traits) or undifferentiated (either males or females who report themselves as low on both masculine and feminine traits). Twenge (1997) noted that, although men are generally more masculine than women and women generally more feminine than men, the association between biological sex and masculinity/femininity is waning.
Early gender identity research hypothesized a single bipolar dimension of masculinity-femininity—that is masculinity and femininity were opposites on one continuum. As societal stereotypes changed, however, assumptions of the unidimensional model were challenged. This led to the development of a two-dimensional gender identity model, in which masculinity and femininity were conceptualized as two separate, orthogonal dimensions, coexisting in varying degrees within an individual. This conceptualization on femininity and masculinity remains the accepted standard today.
Measurement of gender identity
Hebrew has a few words found in the Mishna and Talmud (Jewish religious text) that describe genders beyond just male and female. An androgynos has both male and female genitalia. A tumtum is “a person whose sexual characteristics are indeterminate or obscured,” which could mean that they were born with skin over their genitalia, or that they identify as neither male or female. Ay’lonit is an infertile female or a FTM (female to male) transgender person. A saris is a MTF (male to female) transgender person or a male who is infertile or was castrated.  In Halakha (Jewish religious law), people (not including women, slaves, or minors) are obligated to read the Scroll of Esther on Purim. A saris can fulfill the obligation for the community if they read the scross to the community, however, a tumtum and an androgynos cannot fulfill the obligation for the community. An androgynous can only fulfill it for other androgynos, and a tumtum can fulfill is only for themself. In terms of legal representation of androgynos and tumtum people, the Rabbis in the Mishna couldn’t decide whether the androgynos was a male or female, so they considered them a being unto itself, which sometimes obeyed laws for females and sometimes obeyed laws for males. The tumtum, on the other hand, was considered to be sometimes a man and sometimes a woman, so they followed the laws according to the gender they identified with at the time. 
In July 2012 Gopi Shankar, a Gender activist and a student from The American College in Madurai coined the regional terms for genderqueer people in Tamil, Gopi said apart from male and female, there are more than 20 types of genders, such as transwoman, transmen, androgynous, pangender, trigender,, etc., and ancient India refers it as Trithiya prakirthi. "
Most societies have only two distinct, broad classes of gender roles, masculine and feminine, that correspond with the biological sexes of male and female. When a baby is born, society allocates the child to one sex or the other, on the basis of what their genitals resemble. However, some societies explicitly incorporate people who adopt the gender role opposite to their biological sex; for example, the two-spirit people of some indigenous American peoples. Other societies include well-developed roles that are explicitly considered more or less distinct from archetypal female and male roles in those societies. In the language of the sociology of gender, they comprise a third gender, more or less distinct from biological sex (sometimes the basis for the role does include intersexuality or incorporates eunuchs). One such gender role is that adopted by the hijras of India and Pakistan. Another example may be the Muxe (pronounced ), found in the state of Oaxaca, in southern Mexico, "beyond gay and straight."
Sexologist John Money coined the term gender role in 1955. The term gender role is defined as the actions or responses that may reveal their status as boy, man, girl or woman, respectively. It includes, but is not restricted to, sexuality in the sense of eroticism. Elements surrounding gender roles include clothing, speech patterns, movement, occupations, and other factors not limited to biological sex. Because social aspects of gender can normally be presumed to be the ones of interest in sociology and closely related disciplines, gender role is often abbreviated to gender in their literature.
Both these definitions are facing opposite directions with their own defined set of rules and criteria on which the said systems are based.
In this context, the socially constructed rules are at a cross road with the assignment of a particular gender to a person. Gender ambiguity deals with having the freedom to choose, manipulate and create a personal niche within any defined socially constructed code of conduct while gender fluidity is outlawing all the rules of cultural gender assignment. It does not accept the prevalence of the two rigidly defined genders "man" and "woman" and believes in freedom to choose any kind of gender with no rules, no defined boundaries and no fulfilling of expectations associated with any particular gender.
The assignment of gender involves taking into account the physiological and biological attributes assigned by nature followed by the imposition of the socially constructed conduct. The social label of being classified into one or the other sex is necessary for the medical stamp on birth certificates. Gender is a term used to exemplify the attributes that a society or culture constitutes as "masculine" or "feminine". Although a person's sex as male or female stands as a biological fact that is identical in any culture, what that specific sex means in reference to a person's gender role as a woman or a man in society varies cross culturally according to what things are considered to be masculine or feminine. The cultural traits typically coupled to a particular sex finalize the assignment of gender and the biological differences which play a role in classifying either sex as interchangeable with the definition of gender within the social context.
Intersections and crossing of the prescribed boundaries have no place in the arena of the social construct of the term "gender".  The beliefs, values and attitude taken up and exhibited by them is as per the agreeable norms of the society and the personal opinions of the person is not taken into the primary consideration of assignment of gender and imposition of gender roles as per the assigned gender. The
According to gender theorist Kate Bornstein, gender can have ambiguity and fluidity. There are two contrasting ideas regarding the definition of gender, and the intersection of both of them is definable as below:
Social assignment and the idea of gender fluidity
Categorizing males and females into social roles creates a problem, because individuals feel they have to be at one end of a linear spectrum and must identify themselves as man or woman, rather than being allowed to choose a section in between. Globally, communities interpret biological differences between men and women to create a set of social expectations that define the behaviors that are "appropriate" for men and women and determine women’s and men’s different access to rights, resources, power in society and health behaviors. Although the specific nature and degree of these differences vary from one society to the next, they still tend to typically favor men, creating an imbalance in power and gender inequalities within most societies. Many cultures have different systems of norms and beliefs based on gender, but there is no universal standard to a masculine or feminine role across all cultures. Social roles of men and women in relation to each other is based on the cultural norms of that society, which lead to the creation of gender systems. The gender system is the basis of social patterns in many societies, which include the separation of sexes, and the primacy of masculine norms. Philosopher Michel Foucault claims that as sexual subjects, humans are the object of power, which is not an institution or structure, rather it is a signifier or name attributed to "complex strategical situation". Because of this, "power" is what determines individual attributes, behaviors, etc. and people are a part of an ontologically and epistemologically constructed set of names and labels. Such as, being female characterizes one as a woman, and being a woman signifies one as weak, emotional, and irrational, and is incapable of actions attributed to a "man". Judith Butler said that gender and sex are more like verbs than nouns. She reasoned that her actions are limited because she is female. "I am not permitted to construct my gender and sex willy-nilly," she said. "[This] is so because gender is politically and therefore socially controlled. Rather than 'woman' being something one is, it is something one does." More recent criticisms of Judith Butler's theories critique her writing for reinforcing the very conventional dichotomies of gender.
Gender identity is the gender or genders a person self-identifies as. One's biological sex is directly tied to specific social roles and the expectations. Judith Butler considers the concept of being a woman to have more challenges, owing not only to society's viewing women as a social category but also as a felt sense of self, a culturally conditioned or constructed subjective identity. The term woman has historically been used interchangeably with reference to the female body, though more recently this usage has been viewed as controversial by feminists. There are qualitative analyses that explore and present the representations of gender; however, feminists challenge these dominant ideologies concerning gender roles and sex. Social identity refers to the common identification with a collectivity or social category that creates a common culture among participants concerned. According to social identity theory, an important component of the self-concept is derived from memberships in social groups and categories; this is demonstrated by group processes and how inter-group relationships impact significantly on individuals' self perception and behaviors. The groups people belong to therefore provide members with the definition of who they are and how they should behave within their social sphere.
Gender identity and gender roles
Analogous terms in other languages
Among the reasons that working scientists have given me for choosing gender rather than sex in biological contexts are desires to signal sympathy with feminist goals, to use a more academic term, or to avoid the connotation of copulation—David Haig, The Inexorable Rise of Gender and the Decline of Sex.
In the last two decades of the 20th century, the use of gender in academia increased greatly, outnumbering uses of sex in the social sciences. While the spread of the word in science publications can be attributed to the influence of feminism, its use as a euphemism for sex is attributed to the failure to grasp the distinction made in feminist theory, and the distinction has sometimes become blurred with the theory itself.
The effectiveness of the medication appears to depend on the sex (not gender) of the patient.
In peasant societies, gender (not sex) roles are likely to be more clearly defined.
The popular use of gender simply as an alternative to sex (as a biological category) is also widespread, although attempts are still made to preserve the distinction. The American Heritage Dictionary (2000) uses the following two sentences to illustrate the difference, noting that the distinction "is useful in principle, but it is by no means widely observed, and considerable variation in usage occurs at all levels."
The modern academic sense of the word, in the context of social roles of men and women, dates from the work of John Money (1955), and was popularized and developed by the feminist movement from the 1970s onwards (see Feminism theory and gender studies below). The theory was that human nature is essentially epicene and social distinctions based on sex are arbitrarily constructed. Matters pertaining to this theoretical process of social construction were labelled matters of gender.
Thou shalt not let thy cattle gender with a diverse kind— Leviticus 19:19, 1616
As a verb, gender means "breed" in the King James Bible:
- 1387–8: No mo genders been there but masculine, and femynyne, all the remnaunte been no genders but of grace, in facultie of grammar—Thomas Usk, The Testament of Love II iii (Walter William Skeat) 13.
- c. 1460: Has thou oght written there of the femynyn gendere?—Towneley Mystery Plays xxx 161 Act One.
- 1632: Here's a woman! The soul of Hercules has got into her. She has a spirit, is more masculine Than the first gender—Shackerley Marmion, Holland's Leaguer III iv.
- 1658: The Psyche, or soul, of Tiresias is of the masculine gender—Thomas Browne, Hydriotaphia.
- 1709: Of the fair sex ... my only consolation for being of that gender has been the assurance it gave me of never being married to any one among them—Mary Wortley Montagu, Letters to Mrs Wortley lxvi 108.
- 1768: I may add the gender too of the person I am to govern—Laurence Sterne, A Sentimental Journey Through France and Italy.
- 1859: Black divinities of the feminine 'gender —Charles Dickens, A Tale of Two Cities.
- 1874: It is exactly as if there were a sex in mountains, and their contours and curves and complexions were here all of the feminine gender—Henry James, 'A Chain of Italian Cities', The Atlantic Monthly 33 (February, p. 162.)
- 1892: She was uncertain as to his gender—Robert Grant, 'Reflections of a Married Man', Scribner's Magazine 11 (March, p. 376.)
- 1896: As to one's success in the work one does, surely that is not a question of gender either—Daily News 17 July.
- c. 1900: Our most lively impression is that the sun is there assumed to be of the feminine gender—Henry James, Essays on Literature.
"Gender...is a grammatical term only. To talk of persons...of the masculine or feminine g[ender], meaning of the male or female sex, is either a jocularity (permissible or not according to context) or a blunder."
In 1926, Henry Watson Fowler stated that the definition of the word pertains to this grammar-related meaning:
τὰ γένη τῶν ὀνομάτων ἄρρενα καὶ θήλεα καὶ σκεύη The classes (genē) of the nouns are males, females and things. The Technique of Rhetoric III v
The word was still widely attested, however, in the specific sense of grammatical gender (the assignment of nouns to categories such as masculine, feminine and neuter). According to Aristotle, this concept was introduced by the Greek philosopher Protagoras.
Gender (dʒe'ndəɹ), sb. Also 4 gendre. [a. OF. gen(d)re (F. genre) = Sp. género, Pg. gênero, It. genere, ad. L. gener- stem form of genus race, kind = Gr. γένος, Skr. jánas:— OAryan *genes-, f. root γεν- to produce; cf. KIN.]
†1. Kind, sort, class; also, genus as opposed to species. The general gender: the common sort (of people). Obs.
13.. E.E.Allit. P. P. 434 Alle gendrez so ioyst wern ioyned wyth-inne. c 1384 CHAUSER H. Fame* 1. 18 To knowe of hir signifiaunce The gendres. 1398 TREVISA Barth. De P. K. VIII. xxix. (1495) 34I Byshynynge and lyghte ben dyuers as species and gendre, for suery shinyng is lyght, but not ayenwarde. 1602 SHAKES. Ham. IV. vii. 18 The great loue the generall gender beare him. 1604—Oth. I. iii. 326 Supplie it with one gender of Hearbes, or distract it with many. 1643 and so on.
The first edition of the Oxford English Dictionary (OED1, Volume 4, 1900) notes the original meaning of gender as "kind" had already become obsolete.
The modern English word gender comes from the Middle English gendre, a loanword from Norman-conquest-era Old French. This, in turn, came from Latin genus. Both words mean "kind", "type", or "sort". They derive ultimately from a widely attested Proto-Indo-European (PIE) root gen-, which is also the source of kin, kind, king, and many other English words. Most uses of derivatives of this root in Indo-European languages refer either directly to what pertains to birth (for example pre-gn-ant) or, by extension, to natural, innate qualities and their consequent social distinctions (for example gentry, generation, gentile, genocide, and eugenics). It appears in Modern French in the word genre (type, kind, also genre sexuel) and is related to the Greek root gen- (to produce), appearing in gene, genesis, and oxygen.
Etymology and usage
Etymology and usage 1
- Analogous terms in other languages 1.1
Gender identity and gender roles 2
- Social assignment and the idea of gender fluidity 2.1
- Social categories 2.2
- Measurement of gender identity 2.3
- Feminism theory and gender studies 2.4
- Social construction of sex hypotheses 2.5
Biological factors and views 3
- Sexual reproduction 3.1
- Gender taxonomy 3.2
- Sexual/gender dimorphism 3.3
- Gender studies 4
General studies 5
- Genes 5.1
- Brain 5.2
- Society and behaviors 5.3
Legal status 6
- General 6.1
- Australian government policy on indeterminate gender 6.2
Gender and society 7
- Gender and languages 7.1
- Gender and science gender 7.2
- Gender and religion 7.3
- Gender and poverty 7.4
- General strain theory 7.5
- Gender and economic development 7.6
- Gender and climate change 7.7
See also 8
- Books 8.1
- Lists 8.2
- References 9
- Bibliography 10
- External links 11
The social sciences have a branch devoted to gender studies. Other sciences, such as sexology and neuroscience, are also interested in the subject. While the social sciences sometimes approach gender as a social construct, and gender studies particularly do, research in the natural sciences investigates whether biological differences in males and females influence the development of gender in humans; both inform debate about how far biological differences influence the formation of gender identity.
In the English literature, the trichotomy between biological sex, psychological gender, and social sex role first appeared in a feminist paper on transsexualism in 1978. Some cultures have specific gender-related social roles that can be considered distinct from male and female, such as the hijra of India and Pakistan.
 of the animals.physiology is also commonly used to refer to the gender In non-human animal research,  as "a person's self representation as male or female, or how that person is responded to by social institutions based on the individual's gender presentation."gender as the biological classification and sex In 2011, the FDA reversed its position and began using .sex instead of gender (FDA) started to use Food and Drug Administration of gender can be traced to the 1980s, a small acceleration of the process in the scientific literature was observed in 1993 when the change in the meaning Although this  or replaces it.sex includes gender However, in many other contexts, including some areas of social sciences,