A restriction in genetic variability caused by a drastic reduction in population size is called a
A)founder effect.
B)Hardy-Weinberg effect.
C)bottleneck effect.
D)polymorphic effect.
E)adaptive effect.

Question

Quizplus · Accepted Answer

A bottleneck effect occurs when a population experiences a sharp reduction in size, reducing genetic variation and resulting in a smaller gene pool. This can lead to a decrease in fitness and an increased risk of extinction. The founder effect occurs when a small group of individuals separates from a larger population to establish a new population, resulting in a loss of genetic diversity. The Hardy-Weinberg principle describes the conditions under which the frequency of alleles in a population will remain constant over generations, which requires a large population size, random mating, no mutation, no migration, and no natural selection. The polymorphic effect refers to the presence of multiple alleles at a single genetic locus, which can increase genetic diversity. The adaptive effect refers to the existence of traits that confer a selective advantage in a specific environment, leading to the retention of those traits in the population over time.

A Restriction in Genetic Variability Caused by a Drastic Reduction