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If two populations remain separated for a long time and do not interbreed, what result is possible?

Answer and explanation

Correct answer: They may become different species

Long-term reproductive isolation stops or greatly reduces gene flow between populations. Once separated, mutation, recombination, genetic drift and natural selection can act differently in the two environments. Differences may accumulate until the populations can no longer produce fertile offspring with one another, a condition associated with separate species. Thus A is a possible result. The other options incorrectly claim instant identity, chromosome loss or a complete absence of change.

Related tags

Reproductive IsolationSpeciationPopulation DivergenceHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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