Multiple Choice
Suppose that mice and humans differ by 20 substitutions in their globin genes, and rats and mice differ by 5 substitutions.On the basis of other evidence, we know that the ancestor to humans and mice lived 80 million years ago.Assuming the molecular clock is operating, rats and mice split from each other _______ million years ago.
A) 5
B) 10
C) 20
D) 40
E) 80
Correct Answer:
Verified
Correct Answer:
Verified
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