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) fur with brown hairs fur with black hairs fur with yellow hairs fur with both black and brown hairs

Explanation:

In Mendelian inheritance, the dominant allele determines the phenotype. Here, gene B (black fur) is dominant over gene b (brown fur). A mouse with genotype Bb has one dominant (B) and one recessive (b) allele. Since the dominant allele (B) masks the recessive allele (b), the phenotype is determined by the dominant allele. So, the mouse will have fur with black hairs.

Answer:

B. fur with black hairs