If the allele b represents black fur and the allele b represents white fur, what would be the phenotype of an animal with the genotype bb
a. spotted fur
b. white fur
c. black fur
d. grey fur

Option C, Black fur

Explanation:

A dominant allele is one which will overshadow/restrict the expression of trait of recessive allele. Thus, when a dominant allele and recessive allele appears together in the genotype of offspring , only the trait associated with the dominant allele is expressed.  

Here in this case B is the dominant allele which is associated with Black color of fur and b is the recessive allele which is associated with white fur. Thus, when B and b appears together, only the trait “ black color of fur” associated with dominant allele B is expressed.

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