TIPLE GENES (POLYGENIC INHERITANC5, the gene for seed shape has two allenkled (r) is recessive. The gene for seed cdominant, and green (y) is recessive.ts that are both heterozygous for seed shap(RrYy x RrYy).nett square for the dihybrid cross (RrYy x:to interpret the result of your dihybrid cro):P):(Round, Yellow)(Round, Green)(Wrinkled, Yellow)(Wrinkled, Green)%%):(Round, Yellow)(Round, Green)(Wrinkled, Yellow)(Wrinkled, Green)