A homozygous plant having round (R) and yellow (Y) seed is crossed with a homozygous plant having wrinkled (r) and green (y) seeds.
Give the dihybrid phenotypic ratio and the phenotype of the offspring of the `F_2` generation when two plants of the `F_1` generation are crossed.

Explanation

9:3:3:1-Yellow round (9), green round (3), yellow wrinkled (3), green wrinkled (1).