Bunch of Science “Deniers”. If you have an xy sex chromosome you are male. If you have a yy sex chromosome you are female. And it’s not just humans it occurs in all mammals.
posted on 09/11/2017 12:30:00 PM PDT
(Ingnorantia non excusat)
If you have a yy sex chromosome you are female.
That doesn't sound right... XX
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