Thread: Gay gene?
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Old Feb 2, 2008, 01:27 am   #22 (permalink) (top)
Tycoon
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Quote:
Fraternal birth order. The probability that a man has homosexual preference increases with the number of older brothers he has. Each older brother increases the odds by 1/3 – 1/2. This effect cannot have a genetic basis. Speculations for this effect focus on the mother progressively building antibodies against an unknown male protein, more so with each son.
I didn't even know that this actually is a scientific theory. I know a family with four children and the fourth is most definately gay.
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