Wild harebells have blue flowers. Two strains of harebells carryrecessive alleles that give the plants white flowers.
a. Describe a cross to determine whether the white-flowercausing alleles in these two strains are variants of the same geneor different genes, and the progeny phenotypes you expect to findin each case.
b. You results from the cross above indicate that the twostrains carry alleles at different genes. What phenotypic ratio doyou expect to find among the F2 progeny of a cross between parentsof the two strains?