Baby, I was born this way, Lady Gaga sang in a 2011 hit that quickly became a gay anthem. Indeed, over the past 2 decades, researchers have turned up considerable evidence that homosexuality isn't a lifestyle choice, but is rooted in a person's biology and at least in part determined by genetics. Yet actual gay genes have been elusive.
A new study of male twins, scheduled for presentation at the annual meeting of the American Society of Human Genetics (ASHG) in Baltimore, Maryland, today, could help explain that paradox. It finds that epigenetic effects, chemical modifications of the human genome that alter gene activity without changing the DNA sequence, may have a major influence on sexual orientation.
Vilain's team stresses that the findings shouldn't be used to produce tests for homosexuality or a misguided cure. Bailey says he's not worried about such misuse. We will not have the potential to manipulate sexual orientation anytime soon, he says. And in any case, he adds, we should not restrict research on the origins of sexual orientation on the basis of hypothetical or real implications.
More at this link. I find this very interesting. While in my graduate studies, I remember having this discussion about the origin (nurtured or inherited) of sexual orientation. We should not be afraid about embracing a possible Biological root though this study is on DNA methylation, which in short is a way of saying gene expression is highly modulated by the environment.
Interesting any way. What you think Gaf?
Lock if old!