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).