Which of the following must be true of a population in genetic equilibrium?

A. Migration between populations

B. Small population size

C. Random mating

D. Sexual selection

C. Random Mating

The gene pool of a population is said to be in Hardy-Weinberg equilibrium if there is no migration in or out of the population (no gene flow), There are no mutations, no natural selection, The population is large enough to avoid genetic drift and the mating is random (not sexual selection)