Are Gay People Born This Way ?
Gay men often claim that even as children they knew they were somehow “different” from other boys. Many say that sense even preceded puberty. And yet, though researchers have tried for decades to identify a biological basis for homosexuality — which seems to be present in all human societies — they have mostly come up dry. Tantalizing clues have surfaced: gays are more likely to be left-handed, for instance. But in the end, there has been little proof that biology is sexual destiny.
Scientific research publications from October 2004 and June 2008 stated that scientists have found that women tend to have more children when they inherit the same genetic factors linked to homosexuality in men. This fertility boost more than compensates for the lack of offspring fathered by gay men, and keeps the “gay” genetic factors in circulation.
A 2005 study reported genetic scans showing a clustering of the same genetic pattern among gay men on three chromosomes – chromosomes 7, 8, and 10. The regions on chromosome 7 and 8 were associated with male sexual orientation regardless of whether the man got them from his mother or father. The regions on chromosome 10 were only associated with male sexual orientation if they were inherited from the mother.
A study from 2006 said that researchers have known for years that a man’s likelihood of being gay rises with the number of older biological brothers, but the new study found that the so-called “fraternal birth order effect” persists even if gay men were raised away from their biological families & that “the research suggests that the development of sexual orientation is influenced before birth.”