If a variation in an organism does not help its survival or reproduction, what may happen to it under natural selection?
Answer and explanation
Correct answer: It may remain less common or disappear
Natural selection changes the frequency of heritable variations according to their effects on survival and reproduction. A variation that gives no advantage may be passed on less often, especially if it reduces reproductive success, so its frequency can remain low or decline over generations. Thus, option A is correct. It is not guaranteed to spread, create a species immediately, or be beneficial in every environment.
Frequently asked questions
What is the correct answer to this question?
It may remain less common or disappear
Why is this the correct answer?
Natural selection changes the frequency of heritable variations according to their effects on survival and reproduction. A variation that gives no advantage may be passed on less often, especially if it reduces reproductive success, so its frequency can remain low or decline over generations. Thus, option A is correct. It is not guaranteed to spread, create a species immediately, or be beneficial in every environment.
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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