Question

multiple choice question
a dramatic reduction in population size due to a natural disaster or destruction of habitat, and the resulting change in the allele frequencies of the new population, is called

o the founder effect

o the bottleneck effect

o directional selection

o negative frequency - dependent selection

Explanation:

The bottleneck effect occurs when a population's size is drastically reduced by a natural - disaster or habitat destruction, leading to changes in allele frequencies. The founder effect is when a new population is established by a small number of individuals. Directional selection is a type of natural selection where an extreme phenotype is favored over other phenotypes. Negative frequency - dependent selection is when the fitness of a phenotype depends on its frequency in the population.

Answer:

B. the bottleneck effect