In cattle, the allele for white coat color (W) and the allele for red coat color (R)
are codominant. A heterozygote has the roan coat color. Two cows with the
following genotypes are crossed.
WWx RR
What is the expected phenotypic ratio of the offspring?
A. 2 red: 0 roan: 2 white
OB. 0 red: 4 roan : 0 white
C. 1 red: 2 roan : 1 white
OD. 3 red: 1 roan: 0 white