Difference Between Monohybrid and Dihybrid Cross

Monohybrid CrossDihybrid Cross
Monohybrid cross is the cross between the two individuals having homozygous genotypes which result in the opposite phenotype.Dihybrid cross is the cross between the two organisms which are identical hybrids for two traits.
Monohybrid cross is used to study the dominance of genes.Dihybrid cross is used to study the cross of offspring assortment.
The phenotypic monohybrid ratio in the F2 generation is 3:1.Its phenotypic dihybrid ratio in F2 generation is 9:3:3:1.
It has a genotypic ratio of 1:2:1 in the F2 generation.It has a genotypic ratio of 1:2:1:2:4:2:1:2:1 in F2 generation.
Example- cross between tall (T) and dwarf (t) pea plant.Example: A cross between round yellow seeds (RRYY) and wrinkled green seeds (rryy).