In cattle coat color is determined by a gene which has four

In cattle, coat color is determined by a gene which has four alleles. In order of dominance, the alleles are: -Dutch belt allele (S)—a band of white color around the middle of the animal -Hereford-type spotting (sh)—white on legs, head, and belly -Solid color allele (sc) allele—solid color -Holstein-type spotting (s)—large irregular black spots over the entire body. If a Solid-colored bull whose mother was Holstein is crossed with a Dutch belt cow whose father was a purebred Hereford, what will be the expected phenotypic ratio of the offspring?

Solution

Solid-colored bull(scs) X Dutch belt cow (Ssh)

The offspring produced are with Dutch belt allele and Hereford-type spotting in 1:1 ratio.