The punnett square represents the dihybrid cross between two pea plants. here r represents the dominant allele for round shape of 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.

The expected phenotypic ratio of dihybrid crosses is 9:3:3:1. This means that in the cross of two plants with the heterozygous genotype RrYy 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
1 plant with wrinkled shape of seed and green seed color

idk

Explanation: