Question

What will be the genotypic and phenotypic ratio of test cross and back cross of dihybrid

cross?
please answer if u can ​

Answer 1

Answer:

Both the product rule and the Punnett Square approaches showed that a 9:3:3:1 phenotypic ratio is expected among the progeny of a dihybrid cross such as Mendel's RrYy × RrYy. ... each of four possible phenotypes can be distinguished unambiguously, with no interactions between the two genes that would alter the phenotypes.