The phenotypic ratio of Mendelian dihybrid cross in F2 generation is
1 : 2 : 1
9 : 3 : 3 : 1
3 : 1
3 : 2 : 2 : 1
The phenotypic ratio of Mendelian dihybrid ratio in F2 generation is 9 (parental character) : 3(recombinant) : 3 (recombinant) : 1(parental).