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Politics : Politics for Pros- moderated
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To: E who wrote (13820)10/25/2003 9:05:57 PM
From: Dayuhan  Read Replies (2) of 793640
 
Just on a cursory reading, we see how hard these conclusions are to make....

If there is a genetic component to homosexuality, one would expect identical twins to share sexual orientation more than fraternal twins, and that is indeed the case. An identical twin of a gay person is about twice as likely to be gay as a fraternal twin would be.

Don't most identical twins also share the same social environment?

a male is more likely to be gay if he has older brothers. It doesn't matter if he has older sisters, but for each older brother he is about 33 percent more likely to be gay. Some scientists speculate that a woman's body adjusts the androgen level in her womb as she has more sons, and that the androgens interact with genes to produce homosexuality.

Others might speculate about the social/psychological conditions common to males with older brothers.

I think the only fair answer to the "nature vs. nurture" question is that we don't know.

I also really don't see that it matters.
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