I believe the white gene is dominate. I am no authority on this but as I bred each generation more and more the white came out and I kept breeding the white back to white. I'm not doing this any more. I don't have my ISA boys anymore. It was a fun project. The first breeding the chicks came out all different colors. Here is a picture of some of the chicks from the first breeding. There were a lot of males. Some of the chicks look like ISA females actually turned out to be male and many of the white chicks turned out to be female.
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