Consider the following scenario:

Question

In a certain dog breed, the allele B for a black coat is dominant, and the allele b for a spotted coat is recessive. What genotypes for this dog breed would lead to a spotted phenotype?

(1 point)
Responses

Bb
Bb

bb
bb

BB
BB

BB and bb

Answer 1

In this scenario, the allele B (black coat) is dominant, while the allele b (spotted coat) is recessive. For a dog to have a spotted phenotype, it must express the recessive trait, which requires two copies of the recessive allele.

Therefore, the only genotype that would lead to a spotted phenotype is bb.

So the response is:

bb