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Why are acquired traits alone not considered the main basis of evolution?

Answer and explanation

Correct answer: They usually do not change genes in reproductive cells

An acquired trait develops during an organism’s lifetime because of use, exercise, nutrition, injury, or environmental conditions. Evolution depends mainly on heritable variations, which arise from changes or recombination in genetic material passed through reproductive cells. Since an acquired change usually does not alter those genes, it is not normally transmitted to offspring. Therefore, option A is correct; the other options make absolute or factually incorrect claims.

Related tags

Acquired-TraitsInherited-VariationEvolutionGenesHeredity And EvolutionWorld Of LivingScienceClass 10 Mcq

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