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Eggs Screen Sperm for DNA Quality: Scientists

By Drew Nelles,  Newser Staff

Posted Aug 2, 2009 5:49 PM CDT

(Newser) – Some couples are unable to conceive because the woman's eggs screen his sperm for DNA quality and give it a thumbs down, the Independent reports. Scientists in Britain and the US have spotted this "lock-and-key" mechanism in which eggs "read" sperm's...   Read full story »

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