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Question

A population will not exist in Hardy-Weinberg equilibrium if?


A

The population is large

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B

There is no migration

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C

There are no mutations

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D

Individuals mate selectively

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Solution

The correct option is D

Individuals mate selectively


The correct option is D.

Explanation of correct option:

  1. Hardy - Weinberg principle states that allele frequencies in a population is stable through generations.
  2. The gene pool (total number of genes and their alleles) of the population always remains constant. This is known as genetic equilibrium.
  3. A population will exist in Hardy-Weinberg equilibrium only when these conditions are present- population size is large, no mutations, no recombination, no migrations, lack of natural selection, etc.
  4. A population will not follow Hardy-Weinberg equilibrium if mating is done selectively (non-random mating). Non-random mating will change allele frequencies.

Final answer: A population will not exist in Hardy-Weinberg equilibrium if individuals mate selectively.


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