Genetic drift produces variation for evolution when ________.
A) a gene pool decreases because a smaller group establishes a new population
B) chance events cause allele frequencies to fluctuate unpredictably
C) sudden change in environment drastically reduces the gene pool
D) a population has heritable traits better suited to the environment

Question

Quizplus · Accepted Answer

Genetic drift is a random change in allele frequencies within a population due to chance events, such as natural disasters or the random mating of individuals. These chance events can cause random fluctuations in allele frequencies, ultimately leading to genetic variation. The other options (A, C, and D) do not directly relate to how genetic drift produces variation for evolution.

Genetic Drift Produces Variation for Evolution When ________