[King Prout]

I don't think it's genetic. Homosexual men vastly outnumber lesbians.

Non sequitur, and not exactly so.
The ballpark figures from recent studies indicate a 2% homo incidence among males and a 1.6% incidence among females. Not so very great that the size of the samples could not have produced a statistical fillip.
again: the science on this is still very young. I reserve judgement until a statistically significant number of genomes have been mapped and compared.

[walden]

"The ballpark figures from recent studies indicate a 2% homo incidence among males and a 1.6% incidence among females. "

Do you have a source on that? I find these numbers surprisingly low. I've read numbers as high as 15% for males, but I really thought the numbers were around 10% for males and 2-3% for females.