In a species of rabbits, there are three dominant phenotypes: black, grey, and white. A biologist notices that when a black rabbit and a white rabbit mate, the offspring is grey. What pattern of inheritance does this model? Why?

Question

Responses

Codominance; the offspring have both black and white spots
Codominance; the offspring have both black and white spots

Incomplete dominance; the offspring are a mixture of each parent's phenotype
Incomplete dominance; the offspring are a mixture of each parent's phenotype

Sex-linked trait; it shows that coat color is carried on the Y chromosome.
Sex-linked trait; it shows that coat color is carried on the Y chromosome.

Crossing over; each parent traded chromosome parts with their parents in the process of creating a baby rabbit

Answer 1

The correct response is:

Incomplete dominance; the offspring are a mixture of each parent's phenotype.

In this scenario, the black rabbit and the white rabbit are creating grey offspring, which indicates that neither black nor white is truly dominant over the other. Instead, the heterozygous offspring exhibit a phenotype that is a blend of the two parental phenotypes, characteristic of incomplete dominance.