What proportion of the offspring will have the following phenotype RY Ry rY and ry?

Answer 1

To determine the proportion of offspring with the phenotypes RY, Ry, rY, and ry, we need to know the genotypes of the parents and whether we are looking at a dihybrid cross (e.g., RrYy x RrYy). In a typical dihybrid cross, the phenotypic ratio for these combinations would be 9:3:3:1, meaning that for every 16 offspring, 9 would express the dominant traits, 3 would show one dominant and one recessive, another 3 would show the opposite dominant and recessive, and 1 would show both recessive traits. Without specific parental genotypes, the precise proportions cannot be calculated.