What is the main difference between natural selection and genetic drift?
Answer and explanation
Correct answer: Natural selection is linked with useful traits while genetic drift can happen by chance
Natural selection changes trait frequencies because environmental conditions give some heritable traits an advantage in survival or reproduction. Genetic drift changes allele frequencies through random events, such as the accidental survival or reproduction of particular individuals, and it is especially influential in small populations. Thus option A correctly contrasts selection with chance. B is irrelevant, C is false, and D denies the environmental role in selection.
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What is the correct answer to this question?
Natural selection is linked with useful traits while genetic drift can happen by chance
Why is this the correct answer?
Natural selection changes trait frequencies because environmental conditions give some heritable traits an advantage in survival or reproduction. Genetic drift changes allele frequencies through random events, such as the accidental survival or reproduction of particular individuals, and it is especially influential in small populations. Thus option A correctly contrasts selection with chance. B is irrelevant, C is false, and D denies the environmental role in 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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