Sexual Evolution: From X to Y

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Uploaded by on Apr 1, 2010

The presence of the Y chromosome triggers a human embryo to become male. Dr. David Page describes how the Y chromosome was once very much like every other gene-filled chromosome, but in the course of vertebrate evolution has lost almost every function except making males.

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Education

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  • What is going on in this discussion? And so thanks for posting this vid!

  • 16:35 This is where it gets good. The Y-chromosome is asexual. It is produced as a "clone" through one lineage.

  • @alcidesflores79

    it was not intended serious

  • back to Adam? this guy does not understand science

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