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What can happen if natural selection and genetic drift act differently in two separated groups?

Answer and explanation

Correct answer: The two groups can become very different over time

Natural selection changes the frequency of heritable traits according to environmental advantage, while genetic drift changes allele frequencies by chance, especially in small populations. If two isolated groups experience different environments and different random events, their genetic compositions can shift in different directions. Continued divergence may eventually contribute to speciation. Thus option A is correct; immediate identity, no change, and chromosome loss do not follow from these mechanisms.

Related tags

Natural-SelectionGenetic-DriftSpeciationEvolution And SpeciationHeredity And EvolutionScienceClass 10 Mcq

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