What were the parents of these butterflies?
Dark wing and Dark body times Dark wing and Dark body. (Hybrids) These are the F2; the F1's would only have one phenotype, all would be dark winged and dark body.
Dark wing and Dark body times Dark wing and Dark body. (Hybrids) These are the F2; the F1's would only have one phenotype, all would be dark winged and dark body.