Also, I have seen this color written as Isabel...is it a diff. color or just an incorrect spelling?
I think they are the same thing.
I'm not sure either one is wrong-- probably each is used in a different language, and English speakers are being inconsistent in which one they borrow.
I have a Lavender Brahma roo (parents were Lavender x Isabella). If I cross him back to an Isabella can I expect most of the chicks to also be Isabella?? Is there a way to insure all chicks are Isabella or will you always have a mix of solid lavs and Isabellas?
I think Isabella x Isabella should breed true (produce only Isabella chicks).
For any Lavender who has an Isabella parent, breeding to Isabella will probably produce some Lavender chicks and some Isabella chicks.