What I've heard, depending on which parent, or both parents, if the gene is present, meaning they came from clutches that had at least some EBJDs, you should get a corresponding ratio of individuals expressing the gene ( actual EBJDs, which you can see in the pics, mine are not). Of course, this is what I've heard and this is my first go round, but the pair did come from a clutch that had EBJD individuals. We shall see.