When did X turn into Y? Homosapien history
Question asked by: trigger
Asked on: 18 Mar 2010
The Y chromosome is the one that gives the male characteristics and ensures that the embryo becomes a male child not a female one.
The Y comes from the man as the woman only has the X chromosome.
In terms of where they came from don't all chromosomes come from humans in the sense that they come from your forebears...
By: daveyc
Replied at: 21 Mar 2010
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homosapien history
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