The Biological Sexes

The two biological sexes.  Defined at the chromosomal or genetic level by the presence or absence of a Y chromosome. A Y results in a male, absence of a Y in a female.  Thus males have XY sex chromosomes while females have XX sex chromosomes.

Note that biological sex is distinct from cultural gender.

Membership List

• Female (XX)
  
• Male (XY)
  

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