dihybrid crosses can be conducted with two organisms that are heterozygous for two different traits SSYY X SSYY for example which genotypic ratio shows that genes and hyper crosses are inherited according to the principle of independent assortment
The genotypic ratio that shows independent assortment of genes in a dihybrid cross is 1:2:1:2:4:2:1:2:1 (1 homozygous dominant for both traits, 2 heterozygous dominant for one trait and homozygous recessive for the other, 1 homozygous recessive for both traits, 2 heterozygous dominant for one trait and homozygous recessive for the other, 4 heterozygous for both traits, 2 heterozygous recessive for one trait and homozygous dominant for the other, 1 homozygous dominant for one trait and heterozygous recessive for the other). This ratio indicates that genes assort independently during gamete formation and are randomly combined in the offspring.
