Which of the following is an example of gene flow?
OA. Genetic recombination results in a new combination of alleles when two organisms from a population sexually reproduce.
OB. Two previously isolated populations begin interbreeding, causing a transfer of genetic information between the
populations.
OC. A mutation in a sexually reproducing population causes an increase in the genetic diversity of the population.
OD. A natural disaster causes a certain subset of a population to die out, resulting in a loss of genetic diversity.