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Whilst XY sex determination is the most familiar, since it is the system that humans use, there are a range of alternative systems found in nature. The inverse of the XY system (called ZW to distinguish it) is used in birds and many insects, in which it is the females that are heterogametic (ZW), while males are homogametic (ZZ). [18]
For example, while having an XY format, Xiphophorus nezahualcoyotl and X. milleri also have a second Y chromosome, known as Y', that creates XY' females and YY' males. [ 16 ] At least one monotreme , the platypus , presents a particular sex determination scheme that in some ways resembles that of the ZW sex chromosomes of birds and lacks the ...
X-gender; X-jendā [49] Xenogender [22] [50] can be defined as a gender identity that references "ideas and identities outside of gender". [27]: 102 This may include descriptions of gender identity in terms of "their first name or as a real or imaginary animal" or "texture, size, shape, light, sound, or other sensory characteristics". [27]: 102
The Y chromosome is one of two sex chromosomes in therian mammals and other organisms.Along with the X chromosome, it is part of the XY sex-determination system, in which the Y is the sex-determining chromosome because the presence of the Y chromosome causes offspring produced in sexual reproduction to be of male sex.
In Polynesia there are many different terms for gender roles, for example in Tahiti the role is called māhū. In Samoa the male gender variant is called faʻafafine which means "like a woman". Tuva and Tonga have terms also. In Tonga the term is fakaleiti and in Tuva the term is pinapinnaine.
This is an accepted version of this page This is the latest accepted revision, reviewed on 24 January 2025. Gender identity as neither man nor woman Part of a series on Transgender topics Outline History Timeline Gender identities Androgyne Bissu, Calabai, Calalai Burrnesha Cisgender Gender bender Hijra Non-binary or genderqueer Gender fluidity Kathoey Koekchuch Third gender Bakla Faʻafafine ...
Strong, cool, interesting gender-neutral baby names to consider for boys and girls, including choices like James, Carter, Avery and Casey. 200 gender-neutral baby names for boys AND girls Skip to ...
The gender binary (also known as gender binarism) [1] [2] [3] is the classification of gender into two distinct forms of masculine and feminine, whether by social system, cultural belief, or both simultaneously. [A] Most cultures use a gender binary, having two genders (boys/men and girls/women). [4] [5] [6]