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Homosexuality's "X" factor.

Being gay could be all about your mother. New research suggests the genetics of mothers with multiple gay sons are different from those of other women, adding to the ongoing debate over the origins of homosexuality.

The findings, released February 21, found that almost a quarter of mothers with more than one gay son in the study processed their X chromosomes in the same way. The research "confirms that there is a strong genetic basis for sexual orientation and that for some gay men, genes on the X chromosome are involved," study coauthor Sven Bocklandt, a postdoctoral researcher at the University of California, Los Angeles, told the HealthDay Reporter.

But lonel Sandovici, MD, a genetics researcher at the Babraham Institute in Cambridge, England, was skeptical. The study was small, he said, and most of the mothers of multiple gay sons didn't share the unusual X-chromosome trait. The origins of sexual orientation remain "rather a complicated biological puzzle," Sandovici said in HealthDay Reporter.
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Title Annotation:origins of homosexuality
Publication:The Advocate (The national gay & lesbian newsmagazine)
Article Type:Brief article
Geographic Code:1USA
Date:Apr 11, 2006
Words:162
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