Chance change in the frequency of traits when a small group separates from a population is related to what?
Answer and explanation
Correct answer: Genetic drift
The governing concept is genetic drift, a change in the frequency of alleles or traits caused by chance rather than by a predictable advantage. Its effect is especially strong in a small, separated population because the accidental loss or reproduction of a few individuals can change the group’s genetic composition noticeably. Thus the described chance change is genetic drift. Photosynthesis, digestion and osmosis are biological processes but do not explain inherited trait frequencies.
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What is the correct answer to this question?
Genetic drift
Why is this the correct answer?
The governing concept is genetic drift, a change in the frequency of alleles or traits caused by chance rather than by a predictable advantage. Its effect is especially strong in a small, separated population because the accidental loss or reproduction of a few individuals can change the group’s genetic composition noticeably. Thus the described chance change is genetic drift. Photosynthesis, digestion and osmosis are biological processes but do not explain inherited trait frequencies.
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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