The alleles for eye color and for body color are on the X chromosome of Drosophila, but not on the Y. Red eye color (w+) is dominant to white eye color (w), and tan body color (y+) is dominant to yellow body color (y).

What is the genotype of a yellow-bodied, red-eyed female who is homozygous for eye color?

A.

B.

C.

D.

The female with red eyes and a yellow body must be homozygous recessive for the yellow body color allele. She is homozygous dominant for the eye color allele.

E.