Dihybrid Cross

Parental Cross  -   RRYY      x    rryy
                   Round & Yellow   x   wrinkled & green

F1                                  RrYy


F2
  (gametes)            RY    Ry    ry    rY
                        RY
                        Ry      Punnett Square
                        ry
                        rY

       model dihybrid