Multiple Choice
If many human genes differ in about 10% of their bases from another species' same genes and substitutions occur at an estimated rate of 2% per one million years,then about _____ years have passed since the two species diverged.
A) three million
B) five million
C) 10 million
D) 20 million
E) 200,000
Correct Answer:

Verified
Correct Answer:
Verified
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