Moderate

The severe reduction in population size is due to which of the following?

Correct answer: D. Bottleneck

  • A. Genetic drift
  • B. Outbreeding
  • C. Inbreeding
  • D. Bottleneck

Explanation

The reduction of population size with some specific allele and genotype due to a natural disaster is called the bottleneck effect.

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About Evolution

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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