Why can genetic drift have a stronger effect in a small population?
Answer and explanation
Correct answer: Because chance can change trait frequency quickly
Genetic drift is a random change in the frequency of alleles, and sampling effects are proportionally larger in a small population. If only a few individuals reproduce or survive, their alleles can become common or disappear simply by chance. Therefore option A is correct. Small populations do have genes, can reproduce, and are not necessarily identical.
Frequently asked questions
What is the correct answer to this question?
Because chance can change trait frequency quickly
Why is this the correct answer?
Genetic drift is a random change in the frequency of alleles, and sampling effects are proportionally larger in a small population. If only a few individuals reproduce or survive, their alleles can become common or disappear simply by chance. Therefore option A is correct. Small populations do have genes, can reproduce, and are not necessarily identical.
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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