Wrong Genetic Sex: Difference between revisions
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The whole issue of gender identity aside, anything that interferes with fetal development can cause various degrees of feminization or masculinization ranging from people who are genetically XY and physically female to people who are genetically XX and physically male to people who are intersex and whose anatomical sex is neither male nor female. There is also a phenomenon called ''[[wikipedia:Chimera (genetics)|chimerism]]'' which can cause different parts of the body to have different DNA, meaning DNA from someone's blood or saliva (the most common sources for DNA tests) may not match DNA from other parts of their bodies, which for fictional purposes usually means hair, skin or semen.
In fiction, this usually pops up in various kinds of detective stories and is used as a excuse to make a DNA test into a [[Red Herring]]. It can also be a source of drama or simply a character quirk. The actual cause is likely to be [[
See also [[Hermaphrodite]], which may overlap but is in many cases a distinct phenomenon. Both "hermaphrodite" and "pseudohermaphrodite" were used as medical terms for these conditions in the past but that usage was not strictly accurate and is now considered perjorative.
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{{examples}}
== [[Anime]]
* In ''[[The Day of Revolution]]'', the supposedly male protagonist discovers in the first chapter that he is intersexed and genetically female. Despite some misgivings and with a push from her parents she decides to reinvent herself as a girl. [[Hilarity Ensues]].
* In ''[[Earth Maiden Arjuna]]'', one of the female ecology activists has this, with the implication that it was the result of the polluted environment.
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== [[Real Life]] ==
* Chimerism has been found to be the cause of rare—sometimes, seemingly impossible—coat colors in several species of animal, including dogs, cats, and horses. One particular horse appeared to be a stallion, but was found to have a blend of stallion and mare DNA; many calico tomcats are the feline equivalent.
* The human body is physically female by "default" during the very early stages of development; and what turns that female body into a male body is the action of testosterone in the womb, however, there's a rare condition called Androgen Insensitivity Syndrome in which a resistance to testosterone causes a person with one X chromosome and one Y chromosome develop as a female (although sterile). [[South Africa]]n middle-distance runner [[wikipedia:Caster Semenya|Caster Semenya]] is likely the highest-profile example because of her notability as an athlete.
{{reflist}}
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