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Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
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croundtree2 croundtree2
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9 years ago
In cattle, a cross between a white cow (RR) and a red bull (rr) yields an offspring that is intermediate in color and is called a roan (Rr). If two roan cattle were bred, what phenotypes would you expect?
 Also,how do you do a punnett square for this problem?
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wrote...
#1
9 years ago
Phenotypes would be:
25% white
50% roan
25% red
wrote...
#2
Educator
9 years ago
Quote from: wendytree674 (9 years ago)
Phenotypes would be:
25% white
50% roan
25% red

Could you tell us how you got those numbers?
wrote...
#3
9 years ago
Cross two heterozygotes. which are the two roan. Rr x Rr.
     R   r
R  RR Rr
r   Rr   rr
croundtree2 Author
wrote...
#4
9 years ago
Thank you
wrote...
#5
Educator
9 years ago
Thanks, wendytree674.

@croundtree2, please mark this topic solved once you get a chance.
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