There are 3 possible answers
1)Gene flow occurs between the populations2)relative genotypic frequencies reach a constant state3) Allele frequencies suddenly change
The correct answer is 1 : Gene flow occurs between the populations
Gene flow is one of the four mechanisms of evolution. When individuals move from one population to another, they carry their genes to the other population creating a genetic flow between the populations. This process is important for preventing inbreeding within the populations.