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3. In cattle, the heterozygous (Rr) offspring of red (RR) and white (rr) homozygotes have a roan coat color (mixed red and white hairs). Which cross would result in 1 red, 2 roan, and 1 white offspring? A. RR x rr C. RR x Rr B. Rr x Rr D. Rr x RR ​

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Answer:

  B. Rr x Rr

Explanation:

     R        r

R   RR     Rr

r    Rr      rr

1 RR  (red)

2 Rr (roan)

1 rr  (white)

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