Genetic diversity indicates which of the following?
Correct answer: A. Large gene pool
- A. Large gene pool
- B. Small gene pool
- C. Moderate gene pool
- D. No gene pool
Explanation
Genetic diversity refers to the total number of genetic components in the genetic composition of a species. Genetic diversity arises due to the recombination, mutation, random mating and such related activities.It is crucial for a species' survival because it allows populations to adapt to changing environments through mechanisms like natural selection. Genetic diversity can be maintained through sexual reproduction, which shuffles genes, and is a key factor in maintaining the health and resilience of a population.
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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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