If a trait becomes more common in a small isolated population without special advantage what can it be an example of?
Answer and explanation
Correct answer: Genetic drift
Genetic drift is the chance-driven change in allele frequencies, and its effect is especially strong in a small, isolated population. A trait can become common simply because of random reproduction or the accidental survival of particular individuals, even when the trait gives no special advantage. Therefore option A is correct. Natural selection requires a relationship with differential fitness, while acquired traits and analogous organs describe different concepts.
Frequently asked questions
What is the correct answer to this question?
Genetic drift
Why is this the correct answer?
Genetic drift is the chance-driven change in allele frequencies, and its effect is especially strong in a small, isolated population. A trait can become common simply because of random reproduction or the accidental survival of particular individuals, even when the trait gives no special advantage. Therefore option A is correct. Natural selection requires a relationship with differential fitness, while acquired traits and analogous organs describe different concepts.
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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