Answer :
A random change in allele frequency over time is known as genetic drift.
What is the random change over time in the allele frequency?
- A random change in allele frequency over time is known as genetic drift.
- Genetic drift is the term used to describe the haphazard changes in gene variant frequencies within a population.
- Genetic drift occurs when the frequency of different alleles, or various forms of a gene, fluctuates over time through chance. Changes in allele frequencies are used to measure these differences in allele presence.
- Rarely occurring alleles are more likely to be lost in small populations, where genetic drift typically occurs.
- Genetic drift will persist once it starts until the relevant allele is either lost by a person or until it is the only allele present in a population at a specific locus. Both scenarios reduce a population's genetic diversity.
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