Suppose that a mouse with black fur has both an
allele for black fur and an allele for white fur (Bb).
Based on this information, you can conclude that
the dominant allele must be for fur and
the recessive allele must be for * fur.

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.

yes you are doing it right great gob

explanation:

nucleus

would be most reasonable answer tbh