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Homosexuality may be triggered by environmental factors during childhood after scientists found that genetic changes which happen after birth can determine whether a man is straight or gay.
The finding is highly controversial because it suggests that some men are not born gay, but are turned homosexual by their surroundings. It also raises privacy concerns that medical records could reveal sexuality.
The new research by the University of California has not yet been published but is being presented at the annual meeting of the American Society of Human Genetics in Baltimore.
Scientists studied 37 sets of identical male twins, who were born with the same genetic blueprint, to tease out which genes were associated with homosexuality. In each pair, one of the twins was gay.
Only 20 percent of identical twins are both gay leading researchers to believe that there must be causes which are not inherited.
They found that it was possible to tell whether a man was gay or straight by monitoring tiny changes in how his DNA functions after birth – a field known as epigenetics. Where DNA works as an overall instruction manual, epigenetics act as another layer of information highlighting which parts of the text are important and which can be ignored.
now a controversial new twin study suggests that environmental changes could trigger homosexuality
a reply to: Frocharocha
The science is interesting, and I'm all for understanding what makes us tick. I just don't see the need for gays to justify their attraction to the same gender. Genetic or environment or both, makes no difference to me. It's not my business to be in their business.
originally posted by: 3NL1GHT3N3D1
And next week: "Homosexuality caused by watching PowerPuff Girls".
rather then a temporal scanner
originally posted by: MrsNonSpecific
a reply to: ManBehindTheMask
rather then a temporal scanner
What posh household did you grow up in?
Mine was a strip of, like, negative film you just pushed against the forehead.
And my mother reaction whatever my temperature was, was 'Take two paracetamol, you are going to school, you'll be fine'
originally posted by: DOCHOLIDAZE1
a reply to: Frocharocha
and again i say i doesnt matter how and why people are gay, i wonder how much money has been spent to study this mentioned study. I bet it was enough to by a new computer lab, or an updated set of books for a public school.
Homosexuality may be triggered by environmental factors during childhood after scientists found that genetic changes which happen after birth can determine whether a man is straight or gay.