Question

Suppose that a mouse with black fur has both an

Answer 1

Answer: The black fur allele is dominant and the white fur allele is recessive

Explanation: The mouse is black, and the dominant allele will show up. It is still carrying the white fur allele but it is recessive.

Answer 2

You can conclude that the dominant allele is black fur and the recessive allele is for white fur.

We know this because the mouse has black fur. Since dominant alleles will win over recessive alleles, black fur must be dominant since that’s the color the mouse shows.