Quote (Voyaging @ May 12 2012 02:19pm)
Or perhaps all sexual behavior is really on a spectrum rather than a straight-up hetero/homo distinction, and the presence of this gene is powerful enough to far outshadow female attraction in male carriers.
The twin studies suggest that genetics does play some role, but not exclusively.
ie if your identical twin is homosexual then you're more likely to be homosexual as well, but not by any means guaranteed.
There are theories that prenatal hormones and of course early childhood experiences also play a role.
Not really sure how that connects to your spectrum idea but there you go

Quote (Anonymou5 @ May 12 2012 02:23pm)
what about '' mutations ''
lmk
Mutation creating the gene isn't the problem this theory tries to address.
The theory tries to explain why a gene that inhibits reproduction (by causing homosexuality) might not have been eliminated long ago by natural selection.
Quote (Anonymou5 @ May 12 2012 02:23pm)
like in diablo when you find stuff that gives immune to ****
Quote (piddywiffle @ May 12 2012 02:37pm)
If we were a society that allowed purely homosexual individuals to live alone with each other, then yes. The biological aspects of homosexuality would eventually cease.
However, it remains in the gene pool by a variety of factors. One such example is the individuals oppressed by society and fathering children even though they are legitimately gay.
Society has been oppressing homosexuals for a relatively short time when measuring with an evolutionary scale... which drastically weakens that theory. The gene would have had to appeared very recently for that to work, and even then it would only be a partial explanation as homosexuals would still have lower rates of reproduction overall (which is sufficient for natural selection).