What is the genotypic ratio of a Mendel dihybrid cross?

Notice that the same phenotype have different genotype. For example, round,yellow seed can have genotype- RRYY/RrYy/RRYy/RrYY. This determines the genotypic ratio. To find the genotypic ratio of any cross, first list out the different genotypes obtained. Then, note the number of organisms having each of these different genotypes. read more

If you carefully analyze the various combination of F2 generation, the phenotypic ratio of 16 as 9:3:3:1 , the genotypic ratio of the same would actually be as 1:2:1:2:4:2:1:2:1. read more

Mendel's explanation of the results of a dihybrid cross Given the principles revealed in a monohybrid cross, Mendel hypothesized that the result of two characters segregating simultaneously (a dihybrid cross) would be the product of their independent occurrence. read more