Why does natural selection depend not merely on variation but on inherited variation?
Answer and explanation
Correct answer: Because selection affects future generations only when the trait is passed on
Natural selection acts across generations. A variation may help an organism survive or reproduce, but it can influence the population’s future only if the associated genetic information is transmitted to offspring. Inherited variation can therefore become more common when it improves reproductive success. Option A states this requirement. B is false because variation is not always acquired, while C and D misrepresent heredity and selection.
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What is the correct answer to this question?
Because selection affects future generations only when the trait is passed on
Why is this the correct answer?
Natural selection acts across generations. A variation may help an organism survive or reproduce, but it can influence the population’s future only if the associated genetic information is transmitted to offspring. Inherited variation can therefore become more common when it improves reproductive success. Option A states this requirement. B is false because variation is not always acquired, while C and D misrepresent heredity and selection.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Heredity and Evolution.
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