30 in mice black color b is dominant to white b at a

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30) In mice, black color ( B ) is dominant to white ( b ). At a different locus, a dominant allele ( A ) produces a band of yellow just below the tip of each hair in mice with black fur. This gives a frosted appearance known as agouti. Expression of the recessive allele ( a ) results in a solid coat color. If mice that are heterozygous at both loci are crossed, what is the expected phenotypic ratio of their offspring? Answer: 9 B_A _ (agouti) : 3 B_aa (black) : 3 bbA _ (white) : 1 bbaa (white). Overall, 9 agouti : 3 black : 4 white.
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