In Cattle, Roan Coat Color (Mixed Red and White Hairs)

question 43

Multiple Choice

In cattle, roan coat color (mixed red and white hairs) occurs in the heterozygous (CRCW) offspring of red (CRCR) and white (CWCW) 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

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