Geneticists have investigated many of the genes that control the length, color, and texture of fur in domesticated dogs. One gene,
RSPO2, controls the texture of a dog's coat and whether or not the dog has a long mustache and eyebrows. An allele at this gene,
W, has incomplete dominance and codes for a wiry coat and a long mustache and eyebrows. The other gene, w, codes for a soft
coat, no mustache, and short eyebrows. The three genotypes of these alleles have unique phenotypes. Dogs with the WW
genotype have very coarse hair and long mustaches and eyelashes. Dogs with the Ww genotype have slightly wiry hair and
shorter mustaches and eyebrows. Dogs with the ww genotype have soft hair, no mustache, and short eyebrows.
Suppose that there are 393 dogs in a population. The frequency of the W allele in the population is 0.63, and the frequency of
the w allele is 0.37.
Calculate the expected frequency of each genotype from the observed allele frequencies. Express the genotype frequencies to
three decimal places.
I
expected genotype frequency of WW:
expected genotype frequency of Ww:
