A new study of gay men in the U.S. has found that male sexual orientation is influenced by genes passed on by the mother.
The British newspaper the Guardian reports that in a test of 400 gay men, genes on at least two chromosomes affected whether a man is gay.
More Proof Mom passes on our Gay Gene
“The study shows that there are genes involved in male sexual orientation,” said Michael Bailey, a psychologist at Northwestern University in Illinois, who set out the findings at a discussion event held in conjunction with the annual meeting of the American Association for the Advancement of Science in Chicago.
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Jenifer Propets
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