During gene flow,
A)chance events alter the gene pool of a population.
B)new individuals contribute their alleles to the gene pool of a population.
C)alleles that make an individual more successful move from one population to another.
D)crossing-over creates new combinations of alleles during gamete formation.

Question

Quizplus · Accepted Answer

During gene flow, new individuals migrate into a population and contribute their alleles to the gene pool. This can increase genetic diversity within the population and potentially introduce new advantageous traits. Chance events (such as genetic drift) and crossing-over during gamete formation can also affect the gene pool, but these are not considered gene flow. Alleles that make an individual more successful can indeed move from one population to another through gene flow, but this is a consequence of the migration, not the definition of gene flow itself.

During Gene Flow