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    Y chromosome DNA

    Y chromosome dna is a type of dna that is only carried by men and is only inherited from their fathers men who share a common paternal ancestor will have virtually the same y dna even if that male ancestor lived many generations ago

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    Channels: Genetics

    Tags: Y Chromosome DNA

    Uploaded by: ( Send Message ) on 24-11-2010.

    Duration: 1m 6s