Re: Gender determination (wasOT: Re: What? The clean-shaven outnumber the bearded?)
| From: | Stone Gordonssen <stonegordonssen@...> |
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| Date: | Tuesday, May 20, 2003, 2:03 |
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> > Human sex is determined by genes: XX = female, XY = male, plus the rare
> > exceptions XXX and XYY.
>Don't forget XXY.
Drat. Forgot one. And I should have written "chromosomes" rather than
"genes"
>I've always made jokes about being a YY baby, which would
>only be possible as a child of a gay couple, though the child
>would be very messed up for lacking necessary genes found
>on the X chromosome. A YY would be a real hunk though...
I remember from my university classes in psyche and biology, XYYs were
faddishly called _supermales_, and it was asserted that they were given to
unusually high rates of violence. Considering that even now each individual
alive hasn't been genotyped, one wonders what proof they could offer for
this cause-effect hypothesis.
I'm not familiar enough with gene placement on X chromosomes to even guess
how messed up a YY might be.
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