Blood Type Variations
Country: United States
Date: March 2007
I was just wondering what the evolutionary perspective on blood types
is. How did they come to form? Also, why are there variations if there
are not apparent selections against a certain type?
Another student asked a very similar question about Blood Type Proteins,
although not quite as in depth as yours. But the excellent replies from 2 of
our scientists might also provide some insight into your questions:
My apologies for the delay in replying,
Jeff Buzby, Ph.D.
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Update: June 2012