Well he used both. But true is the answer
Answer:
ya mum ya cant get rid of meh!!!
Explanation:
The right answer is GL
Its offspring will have at least one dominant genotype of the body color (which is grey) and at least one dominant genotype of the wing length (which is the lon one), so it could be:
Gg Ll
GG Ll
GG LL
Gl LL
They must be separated to the point that their genetic makeup changes so that they can no longer breed.