Well, in small populations, an allele can become more or less common by chance. Genetic drift is basically a series of chance occurrences that can cause an allele to become more or less common in a population. It is a random change in the allele frequency.
Well, in small populations, an allele can become more or less common by chance. Genetic drift is basically a series of chance occurrences that can cause an allele to become more or less common in a population. It is a random change in the allele frequency.
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