I read an article that was based on research publish for peer review. Not a debatable point like the post above. He had scientific evidence that during early stages of pregnancy that a protein was responsible for same sex attraction. I cannot remember specific details but something in mothers protects the baby from this happening.
Then how is it that such attraction is not 100 percent identifiable in identical twins? They both share the same DNA, the same womb, the same placenta, the same maternal blood and protein exposure ... and yet the correlation of homosexual attraction among identical twins has never - in any research thus far - exceeded 11 percent ... and even that degree of correlation is at the margins and not typical.