Question

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 black hairs
fur with black hairs

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

fur with brown hairs
fur with brown hairs

fur with yellow hairs

Answer 1

The phenotype of a mouse that has the genotype Bb would be "fur with black hairs." In this case, the black fur allele (B) is dominant over the brown fur allele (b), so the presence of at least one dominant allele (B) results in black fur.