Zoology-Hardy-Weinberg Principle

NEET Zoology Hardy-Weinberg Principle MCQ Question

Type: MCQ-conceptual-Hard-Class 12

Which combination of statements correctly describes the Hardy-Weinberg Principle?

A

Allele frequencies in a population remain constant across generations; the total of all allelic frequencies equals one.

B

The Hardy-Weinberg Principle applies only to diploid organisms; allele frequencies can change due to environmental factors.

C

Genetic equilibrium means that the gene pool remains fixed; changes in allele frequencies indicate evolutionary change.

D

The principle is only applicable in small populations; it assumes random mating is necessary for equilibrium.

Correct Answer

Option A

Detailed Explanation

The Hardy-Weinberg Principle states that allele frequencies in a population are stable and remain constant from generation to generation, with the sum of all allelic frequencies equaling one, indicating genetic equilibrium.

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