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Study of gay brothers may confirm X chromosome link to homosexuality

#1
C C Offline
http://news.sciencemag.org/biology/2014/...osexuality

EXCERPT: Dean Hamer finally feels vindicated. More than 20 years ago, in a study that triggered both scientific and cultural controversy, the molecular biologist offered the first direct evidence of a “gay gene,” by identifying a stretch on the X chromosome likely associated with homosexuality. But several subsequent studies called his finding into question. Now the largest independent replication effort so far, looking at 409 pairs of gay brothers, fingers the same region on the X. “When you first find something out of the entire genome, you’re always wondering if it was just by chance,” says Hamer, who asserts that new research “clarifies the matter absolutely.”

But not everyone finds the results convincing. And the kind of DNA analysis used, known as a genetic linkage study, has largely been superseded by other techniques. Due to the limitations of this approach, the new work also fails to provide what behavioral geneticists really crave: specific genes that might underlie homosexuality....
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#2
Magical Realist Online
I'm willing to entertain the partial role of environment in making me gay. An overabundance of Tarzan and Hercules movies at the impressionable age of 8? Vincent Price as my horror B flick role model? Seeing my baby sister nude for the first time? lol!
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