Question

The migration of breeding individuals between populations causes a corresponding

• A. Genetic drift
• B. Directional selection
• C. Natural selection
• D. Gene flow

Answer 1

The correct option is D Gene flow

Gene flow, also called gene migration, is the introduction of genetic material (by interbreeding) into one population of a species from another, thereby changing the composition of the gene pool of the receiving population. The introduction of new alleles through gene flow increases variability within the population and enables new combinations of traits. In human beings gene flow usually comes about through the actual migration of human populations, either voluntary or forced.