Final answer:
The offspring of a cow with scurs and a bull without scurs could have scurs if the trait is dominant, or lack scurs if the trait is recessive and the bull's non-scurs alleles are dominant.
Step-by-step explanation:
The offspring of a cow with scurs and a bull with no scurs could exhibit either phenotype, depending on the genetic dominance of the scurs trait. If the scurs trait is dominant, there is a possibility that the offspring will also have scurs. In contrast, if the scurs trait is recessive, the offspring may not have scurs, given that the bull contributes no alleles for scurs. Genetics explains that offspring inherit traits from both parents, but the manifestation of those traits depends on the dominance or recessiveness of the alleles involved.