A genetic study conducted over two generations found that the frequencies of genotypes in the first generation were AA: 0.36, Aa: 0.48, aa: 0.16. In the second generation, genotype frequencies remained the same. According to Hardy-Weinberg equilibrium, we can assume:

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Hardy-Weinberg equilibrium assumes random mating and no other factors that could change gene frequencies (such as mutations or selection). Since the genotype frequencies remained constant between generations, we can assume that the population was in Hardy-Weinberg equilibrium, and thus mating was random. Choices A, B, and D can be ruled out because they all suggest that some factor other than random mating has impacted gene frequencies.

A Genetic Study Conducted Over Two Generations Found That the Frequencies