Which of the following conditions is not required to be true for a population in Hardy-Weinberg equilibrium?
Correct answer: A. Random mutations
- A. Random mutations
- B. Large population
- C. No natural selection
- D. Random mating
Explanation
When mating is random in a large population with no disruptive circumstances, the law predicts that both genotype and allele frequencies will remain constant because they are in equilibrium. Hence, a large population, random mating, and no natural selection are required conditions for the population to be in Hardy-Weinberg equilibrium. Mutations are not needed.
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Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
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