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Which of the following occurs when the evolutionary effects of genetic drift is the greatest?

The population size is small
The population size is large
$exual selection occurs
Intraspecific competition is weak

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Answer:

The population size is small

Explanation:

Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error). Genetic drift occurs in all populations of non-infinite size, but its effects are strongest in small populations.

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