Godfrey hardy and wilhelm weinberg independently created models to describe population genetics. they concluded that several conditions needed to be met in order for genetic equilibrium to occur. which of these is a condition of hardy-weinberg equilibrium? a. individuals in a population must not be prevented from migrating or interbreeding. b. individuals in a population must be able to select their mates based on physical characteristics. c. mutations that alter the genetic makeup of the population must not occur. d. the population must be small enough to track each individual within the population.