Sex (trait) Updated 2025-07-16
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This section is about the male/female trait.
For the act, see: sex.
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X-inactivation Updated 2025-07-16
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epigenetics mechanism.
Video 1.
X-Inactivation and Epigenetics by WEHImovies (2012)
Source. Shows how this makes every female mammal a chimera.
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