Question

Imagine that coat color in horses was an example of incomplete dominance; neither black nor white is dominant and the heterozygous phenotype is gray. If two gray horses are mated, what will the offspring look like?

Answer 1

The offsprings will consist of the following genotypic and phenotypic ratio: 1 black : 2 gray : 1 white

Step-by-step explanation:

The gene involved here codes for coat color in horses; the black allele (B) is not dominant over the white allele (W). Hence, they form an heterozygous offspring that is a combination of both phenotypes i.e. an intermediate, Gray horse (BW). This is an example of Incomplete dominance.

In a cross between two gray horses (BW), four possible offsprings with the following genotypes will be produced: BB, BW, BW, WW in the ratio 1:2:1.

This means that 1/4 of the offsprings will be black, 2/4 or 1/2 of the offsprings will be gray and 1/4 will be white.