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Published online 12 October 2004 | Nature | doi:10.1038/news041011-5
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Mother's genetics could influence sexual orientation
Genes could increase male homosexuality while boosting female reproduction.
A survey of Italian men has provided evidence that homosexuality may be partly influenced by genetics. The same genes that are proposed to predispose to homosexuality may also boost reproduction in women, solving the apparent paradox of why these genes have not been removed by natural selection.
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