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A member asked:
Why natural selection hasn't eliminated colour blindness.?
A doctor has provided 1 answer
Not needed: Normal color vision is not necessary for reproduction or survival. If we lived in a society where your necktie had to match your shirt in order to allow you to have children, then ultimately color blindness would be eliminated. However, we do not.
Answered 5/17/2014
4.1k views
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