In the F2 generation, when do the genotypic and phenotypic ratios match exactly?

Explanation

In typical Mendelian genetics, the genotypic and phenotypic ratios differ in monohybrid and dihybrid crosses due to dominant and recessive allele interactions. In incomplete dominance, phenotypes reflect genotypes more directly but still differ in ratios. Therefore, there is no scenario among these where genotypic and phenotypic ratios are exactly the same in the F2 generation.