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AP Biology/Unit 7: Natural Selection
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Molecular Clock and Species Divergence
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How does the molecular clock hypothesis contribute to our understanding of evolutionary timelines?

A

It suggests that genetic changes accumulate at a relatively constant rate, allowing estimation of divergence times between species.

B

It demonstrates that evolution occurs in sudden, clock-like bursts rather than gradually.

C

It shows that genetic changes only occur at specific, predetermined time intervals.

D

It proves that all species evolve at exactly the same rate.

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