NEET · BiologyHard
Which evolutionary mechanism is most likely to reduce genetic variation between two isolated populations?
- A.Genetic drift
- B.Assortative mating
- C.Gene flow
- D.Directional selection
Show correct answer & step-by-step solution
Correct answer: C — Gene flow
Solution
- Genetic drift increases divergence between isolated populations due to random sampling.
- Directional selection can lead to different adaptations in different environments.
- Gene flow is the transfer of genetic material between populations.
- By introducing alleles from one population to another, gene flow reduces the genetic differences between them.
- Hence the answer is (C).
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