Question:medium
Which condition must be met for a population to be in Hardy-Weinberg equilibrium?
Which condition must be met for a population to be in Hardy-Weinberg equilibrium?
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Remember: The five conditions are a classic MCQ trap — memorize them for breeding questions!
Updated On: Jul 2, 2026
- Small population size
- No mutation
- Natural selection occurs
- Non-random mating
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The Correct Option is B
Solution and Explanation
Key Concept: Hardy-Weinberg equilibrium holds only when allele frequencies in a population stay constant across generations.
Quick Check: This needs five conditions together — large population, random mating, no migration, no natural selection, and no mutation. Any new mutation changes allele frequencies, breaking the equilibrium.
Why others fail: Small population size, natural selection, and non-random mating are themselves violations of the equilibrium assumptions, not conditions that maintain it.
Quick Check: This needs five conditions together — large population, random mating, no migration, no natural selection, and no mutation. Any new mutation changes allele frequencies, breaking the equilibrium.
Why others fail: Small population size, natural selection, and non-random mating are themselves violations of the equilibrium assumptions, not conditions that maintain it.
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