In rats, gene B produces black coat color if the genotype is B-, but black pigme

Question

In rats, gene B produces black coat color if the genotype is B-, but black pigment is not produced if the genotype is bb. At an independent locus, gene D produces yellow pigment if the genotype is D-, but no pigment is produced when the genotype is dd. Production of both pigments results in brown coat color. If neither pigment is produced, coat color is cream. A third independently assorting gene involved in determination of coat color in rats is the C gene. At this locus, the genotype C- permits expression of pigment from genes B and D. The cc genotype, however, prevents expression of coat color and results in albino rats. Determine the genotypes of parents that produce the following progeny: 3/8 black; 3/8cream; 2/8 albino. Enter your answers separated by a comma. Express your answer using ''_'' where any allele is possible. For example, for BbD_CC enter BbD_cc.

Explanation / Answer

BBddcc, BBDdCc, Bbddcc, bbddCC, bbddCc, BbDdCC, BBDDCC, BbDdCc

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