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# Compare and contrast genetic drift and natural selection as mechanisms of evolution.

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$\textbf{Genetic drift}$ is the change in the frequency of alleles in a population due to chance or occurrence of a random event (such as natural disasters), where its effect is more pronounced in small populations. It could be either the founder effect or bottleneck.

On the other hand, $\textbf{natural selection}$ is the change in the allelic frequency of population, which favors the traits that could give an advantage to the survival of the organism.

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