Female mouse has black fur(homozygous) ,male has white fur(homozygous). State their offspring’s fur color.(black color is dominant, white is recessive)

ww x bb

bw,bw, bw, bw are the only possible combinations, all black

The offspring will have black fur because

BB Bb Bb bb

because there is a 75% chance of getting black fur since on one is recessive.

The answer is black fur.

To determine the fur color of the offspring of a female mouse with black fur (homozygous) and a male mouse with white fur (homozygous), we need to understand the basic principles of genetics and inheritance.

In this example, black fur is considered dominant, and white fur is considered recessive. This means that the black fur allele (gene variant) tends to be expressed and visible, while the white fur allele remains unseen unless an individual has two copies of it.

Based on this information, we can apply the principles of Mendelian inheritance to predict the possible fur color of their offspring. Let's use the letters B and b to represent the black and white fur alleles, respectively. Since both the female and male mice are homozygous (meaning they have two identical alleles for the fur color trait), the female mouse has the genotype BB, and the male mouse has the genotype bb.

When these two mice reproduce, there are two possible combinations of alleles for their offspring:

1. If the female mouse passes on the black allele (B) and the male mouse passes on the white allele (b), the offspring would have the genotype Bb. Since black fur (B) is dominant over white fur (b), the offspring would have black fur.

2. If the female mouse passes on the black allele (B) and the male mouse also passes on the black allele (B), the offspring would have the genotype BB. In this case, the offspring would also have black fur because it carries two copies of the dominant black allele.

Therefore, the fur color of their offspring would be black.