Dihybrid crosses can be conducted with two organisms that are heterozygous for two different traits for example Which genotypic ratio shows that in dihybrid crosses are inherited according to the principle independent assortment ? A 25:25 25:25 B 50:50 C 3:1 D 9:3:3:1
The correct answer is D) 9:3:3:1.
The 9:3:3:1 genotypic ratio indicates independent assortment of two different traits in a dihybrid cross. This ratio shows that for every 16 offspring, 9 will have both dominant traits, 3 will have one dominant and one recessive trait, 3 will have the other dominant and recessive trait, and 1 will have both recessive traits. This is the expected ratio when the two traits segregate independently of each other, following Mendel's principle of independent assortment.