Which of would produce offspring in the ratio

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April 30, 2020
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April 30, 2020

Which of would produce offspring in the ratio

In cattle, roan coat color (mixed red and white hairs) occurs in the heterozygous (Rr) offspring of red (RR) and white (rr) homozygotes. Which of the following crosses would produce offspring in the ratio of 1 red : 2 roan : 1 white?

A. red × white

B. roan × roan

C. white × roan

D. red × roan

E. The answer cannot be determined from the information provided.