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

Answer 1

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.