FAQ: feathers for the DNA research project 2021

FAQ: I would like to participate with the DNA research, but I am wondering if you are looking for these mutations only in the green series.
I have opalines in combination with euwing and blue, I also have orange face Agapornis roseicollis, but most of them are in combination with marbled. Can you use these feathers too?

Of course, it does not matter if they are in combination with other mutations. We can use DNA of all feathers as long as they are opaline or orange face etc…