Cats (dominance) In cats, suppose that hair length is controlled by one locus with two alleles, and short hair is dominant. 3. In one population, 18 individuals have long hair and 182 individuals have short hair. It is known that mating has been random with respect to hair length for several generations. (a) What are the hair length allele frequencies in this population? (b) How many of the short-haired individuals are expected to be homozygous? 4. Suppose that in another population of cats, you count 48 individuals with long hair and 252 individuals with short hair. It is known that mating has been random with respect to hair length for several generations. (a) What are the hair length allele frequencies in this population? (b) Of the short-haired cats in this population, what proportion are homozygous?