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If a person develops muscles through exercise, why will this trait not play a lasting role in evolution?

Answer and explanation

Correct answer: It does not change genetic information in reproductive cells

The governing concept is the distinction between acquired and inherited traits. Exercise can enlarge muscles during an individual’s lifetime, but this body change normally does not alter the DNA of the reproductive cells. Since evolution across generations depends on heritable genetic variation, the exercised muscles are not transmitted as a programmed trait to offspring. Thus A is correct; B, C and D confuse acquired changes with genes or fossils.

Related tags

Acquired TraitEvolutionGenetic InheritanceInheritanceHeredity And EvolutionScienceClass 10 Mcq

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