Thanks. I had someone trying to pass this b/p off as a yb. I almost died laughing when she told me "if you breed a y.b to a normal you will get all y.b's. If you breed a y.b to a y.b you will get half normals and half y.bs. You have to have two y.bs of the same clutch to get an ivory." I was like...what.....???? I am not that good at genitics but I did look it up and found out that what she said was not corect.
I'm glad you questioned her honestly....or maybe her knowledge?
One thing that I really remind myself of is that the pattern is odd and mismatched along the belly scales, you can really see that on the second picture someone posted for you.
(of course I'm not even close to an expert, but that's one thing I've noticed as a beginner)