3) Peas A, B, and C are of unknown genotypes, but their seeds all look yellow and round. Green and wrinkled peas are used in a testcross with peas from A,B, and C in order to determine the genotypes of the unknown peas.
a. In test cross A, approximately 50% distribution of yellow/round peas, and 50% green/round peas. What is the genotype of these "A" peas?
b.In this test cross B, the offspring consisted of only yellow and round peas. What is the genotype of these "B" peas?
c. In test cross C, approximately 25% distribution of yellow/round, yellow/wrinkled, green/round, and green/wrinkled peas. What is the genotype of these "C" peas?