SAT Subject Biology Practice Question 189: Answer and Explanation

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Question: 189

19. This is required for speciation to occur.

A. Founder effect
B. Heterozygote advantage
C. Population bottleneck
D. Random mating
E. Reproductive isolation

Correct Answer: E


Speciation requires that two populations be reproductively isolated from each other, allowing natural selection to act independently on each.

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