Question

The Punnett square below shows the offspring of two roan colored cows, whose hair color inheritance is codominant. BB creates a red phenotype, WW creates a white phenotype, and BW creates a roan phenotype. What would the genotypes of the parents have to be to ONLY make roan colored offspring?

Answer 1

Answer: The parents would have to be BB and WW.

Step-by-step explanation:

Roan color = BW

Let's do the punnett square to prove our answer.

B B

W BW BW

W BW BW

100% of the offspring will be BW which is roan color.