Both parents originally had this genotype: (Ee, Tt). The parents are known as “dihybrids” because they each have 2 hybrid genes. When dihybrids make gametes, they produce 4 possibilities which are listed on top and on the side of the box below. 

Key:

E = Two Eyes, ee = 0ne eye

T = Green Triangular Head, tt = Purple Pentagonal Head