Assume that a dihybrid cross is made in which the two genes

Assume that a dihybrid cross is made in which the two genes are autosomal and independently assorting. Each gene has two alleles which show incomplete dominance. How many different phenotypes would be expected in the offspring? Enter your answer as a number, i.e. if you think the answer is 2 different phenotypes, simply type in 2.

Solution

16

Because in the punnett square when we draw AaBb x AaBb, we will find 16 possible genotypes with different combinations of A,a,B,b,A,a,B,b . So each different genotype will result into different phenotype due to independent assortment and incomplete dominance of each gene.