In Drosophila melanogaster, the white gene (w) is encoded on the X chromosome while

the curly gene (Cy) can be found on chromosome 2. At the white locus, w+ (red eyes) is

dominant over w (white eyes) while Cy (curly wings) is dominant over Cy+ (normal

wings). If pure breeding females with white eyes and normal wings are crossed with red

eyed males with curly wings. (a) What are the possible genotypes in the parental

generation? (b) what genotypes and phenotypes are expected from this cross? Explain

you reasoning briefly in (a) and (b).