(July 5, 2015 at 1:51 pm)polar bear Wrote: 2. If it is, will homosexuals eventually become extinct because of their lack of ability to reproduce, thus eventually losing the recessive gene?
That in and of itself wouldn't make the gene "go away". Remember that if you have a couple where both have the recessive gene, three out of four of their children will have that gene. If only one parent has it, still one in two will have that gene.
I'm not saying homosexuality is the result of a single recessive gene, but rather that these genes can stay "hidden" in a population with a relatively low rate of occurrence. Take Tay Sachs, for example: it affects children with a 100% mortality rate, so, by definition, they never get to reproduce. Yet, it still survives in the gene pool as a recessive genes. It's bad enough that Jewish families are encouraged to get screened for the gene before starting a family.