In fruit flies, the gene for eye color is carried on the X chromosome. The allele for red eyes (R) is dominant over the allele for white eyes (r). A white-eyed male is crossed with a hom..zygous red-eyed female. The offspring of this cross were then mated with each other. Which distribution of genotypes is most likely in the F2 generation?
A. 25% Xr/Y males, 25% XR/Y males, and 50% XRXr females
B. 25% Xr/Y males, 25% XR/Y males, 25% XRXR females, and 25% XrXR females
C. 50% Xr/Y males and 50% XrXR females
D. 50% Xr/Y males and 50% XRXR females
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