In guinea pigs, black coat (B) is dominant over white coat (b). What are the phenotype and genotype ratios of a cross between a heterozygous black-coated guinea pig and a white-coated guinea pig?

genotype of offspring = Bb, Bb, bb, bb

phenotype - 50% black, 50% white

Explanation:

genotype of  a heterozygous black-coated guinea pig = Bb

genotype of a white-coated guinea pig = bb

Bb x bb

Bb, Bb, bb, bb

50 % of the offspring will be black and 50 % will be white

hope this helps

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