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We Were All Female Once

In the first 5-6 weeks of embryonic development, the Y chromosome in male fetuses has yet to activate, making us all female (1:50)

Courtesy of: AsapSCIENCE


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Comments (2)

good and likely

Posted by naveen tomar on January 31,2013 | 04:33 AM

Wow, what a fascinating video! Do you have any more about humin development and sex/gender?

Posted by Vyctorya on January 10,2013 | 11:42 PM



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