Question 7
A) What is the phenotype of a mouse that has the genotype Bb where B is the gene for black fur and b is the gene for brown fur assuming this gene follows a Mendelian inheritance pattern?(1 point)
fur with black hairs
fur with yellow hairs
fur with both black and brown hairs
fur with brown hairs
If your B indicates dominance, black hairs only.
The phenotype of a mouse with the genotype Bb, assuming Mendelian inheritance, would be fur with both black and brown hairs.
To determine the phenotype of a mouse with the genotype Bb, where B represents the gene for black fur and b represents the gene for brown fur, we need to consider the inheritance pattern of the genes. In this case, assuming Mendelian inheritance, the dominant gene will determine the phenotype.
In Mendelian inheritance, the dominant gene will express its trait and mask the recessive gene's trait in heterozygous individuals (with two different alleles). In this case, the gene for black fur (B) is dominant over the gene for brown fur (b).
Therefore, the phenotype of the mouse with the genotype Bb will be fur with black hairs. The presence of the dominant gene (B) will result in the expression of the black fur trait, while the presence of the recessive gene (b) will not affect the outward appearance of the fur.