7.5 Biological consequences of changing allele frequencies
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7 Terms
How does natural selection impact genetic diversity?
Genetic diversity decreases because a particular phenotype has a selective advantage and specific alleles are favored.
How does gene flow impact genetic diversity?
Genetic diversity increases because the movement of alleles allows for the introduction of new alleles into a population.
How does genetic drift impact genetic diversity?
Genetic diversity decreases because random chance events may lead to the permanent loss of alleles.
How does the bottleneck effect impact genetic diversity?
Genetic diversity decreases because a mass death event leads to the loss of certain alleles.
How does the founder effect impact genetic diversity?
Genetic diversity decreases because the new population descends from a small group with limited material.
How do mutations impact genetic diversity?
Genetic diversity increases because mutations serve as the primary source of brand new alleles.