Question

Identify the genotypes of the male and female flies used in cross 2.

Answer 1

The genotypes of the male and female flies used in cross 2 are XwY and XWXw, respectively.

Step-by-step explanation:

In an X-linked cross, the genotypes of F1 and F2 offspring depend on whether the recessive trait was expressed by the male or the female in the P generation. In the given scenario, the male fruit fly has white eyes, which is a recessive trait, and the female fruit fly is heterozygous for red eye color. Since the red eye color is dominant, the genotype of the male fly would be XwY and the genotype of the female fly would be XWXw.