The Punnett square represents the dihybrid cross between two pea plants. Here R represents the dominant allele for round shape o
f the seed and r represents the recessive allele for wrinkled shape of the seed. Y represents the dominant allele for yellow seed color and y represents the recessive allele for green seed color. Both the plants have the heterozygous genotype RrYy. What is the expected phenotypic ratio of dihybrid crosses?
The answer is 9:3:3:1. <span> The expected phenotypic ratio of dihybrid crosses is 9:3:3:1. This means that in the cross of two </span>plants with the heterozygous genotype RrYy<span> there will be: 9 plants with round shape of seed and yellow seed color 3 plants with round shape of seed and green seed color 3 plants with wrinkled shape of seed and yellow seed color </span>1 plant with wrinkled shape of seed and green seed color
