Suppose two AaBbCc individuals are mated. Assuming that the genes are not linked, what fraction of the offspring are expected to be homozygous recessive for the three traits?

Question

Quizplus · Accepted Answer

For each trait, the probability of a homozygous recessive offspring is 1/4 (since aa is the only homozygous recessive genotype). Therefore, the probability of a homozygous recessive offspring for all three traits is (1/4) x (1/4) x (1/4) = 1/64. Therefore, the fraction of offspring expected to be homozygous recessive for all three traits is 1/64.

Suppose Two AaBbCc Individuals Are Mated