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Agouti is a type of coat color pattern in mouse that cannot be expressed in albinos (white mice).Nonalbino mice without the dominant agouti allele (AAbb and Aabb)are black.An agouti mouse that is heterozygous at the albino (A)and agouti (B)loci (AaBb)is mated to an albino mouse that is heterozygous at the agouti locus (aaBb).
-What percent of the progeny are likely to be albino?
A) 0 percent
B) 12.5 percent
C) 37.5 percent
D) 50 percent
E) 100 percent

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Quizplus · Accepted Answer

The albino trait is recessive, so any progeny with the genotype aa will be albino. The cross AaBb x aaBb results in a 50% chance of the progeny being aa (albino), regardless of the B locus.

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