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An earthquake randomly kills most of a population, changing its genetic structure. This is the:

AGene flow effect
BAssortative mating
CBottleneck effect
DFounder effect
Answer & Solution
Correct answer: C. Bottleneck effect
1. Survivors are a random sample. 2. This is the bottleneck effect. 3. It magnifies genetic drift. _Source: OpenStax Biology 2e, Chapter 19, The Evolution of Populations (CC BY 4.0)._
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