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What is the most direct effect of reproductive isolation?

Answer and explanation

Correct answer: Exchange of genes between groups decreases

Reproductive isolation means that individuals from separated groups cannot mate successfully or cannot produce fertile offspring with one another. The immediate population-level consequence is reduced exchange of genes, or reduced gene flow. This makes option A correct and can later support divergence and speciation. It does not equalize lifespan, convert acquired characteristics into inherited traits, or affect fossil formation as a direct consequence.

Related tags

Reproductive-IsolationGene-FlowSpeciationBiologyHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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