In a dihybrid cross between TT VV X tt vv, F2 progeny of Tt vv, tt VV, Tt Vv and TT VV occur in the ratio of
1 : 1 : 1 : 1
2 : 1 : 2 : 1
2 : 1 : 4 : 1
2 : 1 : 1 : 2
In a dihybrid cross between TT VV X tt vv, F2 progeny of Tt vv, tt VV, Tt Vv and TT VV occur in the ratio of 2 : 1 : 4 : 1.