Answer:
patches of white and red
Step-by-step explanation:
When there are alleles in codominance relationship, we have no dominance and recessivity relationships between alleles and we cannot observe individuals with intermediate phenotypes as in incomplete dominance. In this phenomenon, the two different alleles are fully expressed in the heterozygous individual. Thus, there will be no intermediate form, but a form that expresses both alleles. In this case, we can say that if a cow contains two codominant alleles - one for white skin and one for red skin - that cow's skin would have patches of white and red.