AP BIOLOGY

Detailed explanation-1: -If a red cow is bred to a white bull, all offspring are roan, which have red and white hairs intermixed on the hide. This is an example of codominance.

Detailed explanation-2: -Codominance results in two phenotypes being expressed in different parts of an animal. For example, a Holstein cow has black and white spots. This results from a “white” allele and a “black” allele that are each fully expressed in different parts of the organism.

Detailed explanation-3: -Answer and Explanation: If a red cow is crossed with a white cow the offspring will all be roan, a spotted mixture of red and white.

Detailed explanation-4: -codominance, in genetics, phenomenon in which two alleles (different versions of the same gene) are expressed to an equal degree within an organism. As a result, traits associated with each allele are displayed simultaneously. Related Topics: allele.