Suppose a population's gene pool consists of the A and a alleles in a ratio of 80:20.If the population has reached equilibrium,the next generation will consist of genotypes in a ratio of
A) 36AA:28Aa:36aa.
B) 36AA:48Aa:16aa.
C) 25AA:50Aa:25aa.
D) 64AA:32Aa:4aa.

Question

Quizplus · Accepted Answer

According to the Hardy-Weinberg equilibrium equation, the expected genotype frequencies for a population with alleles A and a in the ratio of 80:20 would be: AA = (0.8)^2 = 0.64, Aa = 2(0.8)(0.2) = 0.32, and aa = (0.2)^2 = 0.04. Therefore, the ratio of genotypes in the next generation would be approximately 25AA:50Aa:25aa, which matches option C.

Suppose a Population's Gene Pool Consists of the a and a Alleles