In Drosophila Melanogaster, the Gene for Eye Color Is Located

Multiple Choice

In Drosophila melanogaster, the gene for eye color is located on the X chromosome. The allele for red eye color (X^w+) is dominant over the allele for white eye color (X^w) . You examine a vial of 100 flies that are all offspring from a single genetic cross. You find both red-eyed females and white-eyed females as well as both red-eyed males and white-eyed males. The genotypes of the parents were ____.

A) X^w+X^w+; X^wY
B) X^w+X^w; X^wY
C) X^wX^w; X^w+Y
D) X^w+X^w; X^w+Y
E) X^wX^w; X^wY