If 2 Spot (S) Is Dominant to 4 Spot (S)

Short Answer

If 2 spot (S) is dominant to 4 spot (s), give the genotypes for the parents in the following crosses:​
(a)2 spot × 2 spot yields 2 spot and 4 spot?(b)2 spot × 4 spot yields only 2 spot?(c)2 spot × 4 spot yields 2 spot and 4 spot?(d)2 spot × 2 spot yields only 2 spot?(e)4 spot × 4 spot yields only 4 spot