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After a storm on an island, only a few lizards survive and form the new population. What effect does this show?

Answer and explanation

Correct answer: Founder effect or genetic drift

The governing concept is genetic drift, a random change in allele frequencies caused by chance rather than by adaptive advantage. Here, a storm leaves only a small number of lizards, and their genes establish the next population. Because this small group may not represent the original population, gene frequencies can change by chance. This bottleneck-like event illustrates drift; option A is correct.

Related tags

Genetic-DriftFounder-EffectPopulationEvolutionHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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