LIFE SCIENCE

Detailed explanation-1: -Non-random mating means that mate selection is influenced by phenotypic differences based on underlying genotypic differences. In some species, males acquire harems and monopolize females. (Elk, elephant seals, horses, lions, etc.) Commonly, the males of such species are much larger than the females.

Detailed explanation-2: -Genetic Drift Example Consider a population of rabbits with brown fur and white fur, white fur being the dominant allele. Due to genetic drift, only the brown population might remain, with all the white ones eliminated. A couple with brown and blue eyes has children with brown or blue eyes.

Detailed explanation-3: -Nonrandom mating occurs when the probability that two individuals in a population will mate is not the same for all possible pairs of individuals. When the probability is the same, then individuals are just as likely to mate with distant relatives as with close relatives–this is random mating.