In a certain mouse population, gene B codes for black fur, and b codes for brown fur. This gene follows the Mendelian inheritance pattern - the trait is only determined by one gene. What is the phenotype of a mouse that has the genotype Bb? (1 point)

Responses

fur with both black and brown hairs
fur with both black and brown hairs

fur with brown hairs
fur with brown hairs

fur with black hairs
fur with black hairs

fur with yellow hairs

1 answer

The phenotype of a mouse that has the genotype Bb will be fur with black hairs. In this case, the dominant allele (B) for black fur expresses itself over the recessive allele (b) for brown fur. Therefore, the correct response is:

fur with black hairs.