What was the purpose of mendel's experiments with dihybrid crosses? a. to determine if traits are controlled by more than one gene b. to determine if one trait could affect the inheritance of another trait c. to determine if it is possible to produce an f2 generation d. to determine if the transforming factor was dna or protein

The answer is A as this is how we discovered alleles and their dominant/recessive nature.

Theoretically if traits were controlled by only 1 gene then every time you bred 2 purple flowers together you would always get offspring that are also purple, but if there were 2 genes and these 2 flowers had recessive white alleles then some offspring would be white.