Which of the following statement is true for genetic drift?

It upsets the Hardy Weinberg Equilibrium

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It is responsible for preserving certain genes

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It is responsible for eliminating genes

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It operates only in large population

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Solution

The correct option is A It upsets the Hardy Weinberg Equilibrium
When a population is in Hardy-Weinberg equilibrium for a gene, it is not evolving, and allele frequencies will stay same across the generations. There are five basic Hardy-Weinberg assumptions: no mutation, random mating, no gene flow, infinite population size, and no selection.
So, the correct answer is 'It upsets the Hardy Weinberg Equilibrium'.

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