Assuming complete dominance,a 3:1 phenotypic ratio is expected from a monohybrid sib or self-cross.

Question

Quizplus · Accepted Answer

In complete dominance, the dominant allele masks the recessive allele. Therefore, in a monohybrid cross between two individuals heterozygous for a trait, a 3:1 phenotypic ratio is expected. This means that three-fourths of the offspring will exhibit the dominant phenotype, while one-fourth will exhibit the recessive phenotype.

Assuming Complete Dominance,a 3:1 Phenotypic Ratio Is Expected from a Monohybrid