If an Ss* Ss mating is performed and the progeny have the following phenotypic ratios S- (- indicates that the other allele is unknown) 3 and ss 1 it would indicate that
A)The S allele is dominant to the s allele
B)Neither allele is dominant
C)The s allele is dominant to the S allele
D)Cannot determine the relationship between the alleles based on the information given

Question

Quizplus · Accepted Answer

The phenotype ratio of 3:1 suggests that the S allele is dominant to the s allele. If neither allele were dominant, we would expect a 1:1 ratio of the two phenotypes. We cannot determine dominance relationships between the alleles based on their symbols alone, but given the observed phenotype ratio, we can infer that S is dominant to s.

If an Ss* Ss Mating Is Performed and the Progeny