Question

black and white speckled chickens are created by parents of two different colors (some all black and some all white). what are these chickens an example of? codominance incomplete dominance multiple alleles

Explanation:

Codominance occurs when both alleles in a heterozygote are fully expressed. In this case, the black and white colors (from the two different - colored parent alleles) are both visible in the speckled chickens. Incomplete dominance would result in an intermediate color (like gray if black and white were incompletely dominant). Multiple alleles refer to a gene having more than two alleles in a population, but this problem is about the expression of two alleles in an individual.

Answer:

codominance