Quote Originally Posted by Jeff B View Post
It is likely that the axanthic gene is recessive as well, but does it produce a distinguishable phenotype on its own without a copy of anerythristic being present is the question. I think some of Scotts past breedings says it can't, but I am not completely certain that anerythistic has ever been completely taken out of the equation, but it is and het axanthic x het axanthic produces all normals in large sample size with no axanthic phenotype expressed, then the question becomes does xx just look normal or is it lethal?
That is probably impossible to answer without genetic sequencing of all offspring from a het axanthic x het axanthic pairing, and testing of any stillborns and slugs (I'm assuming a slug can be an undeveloped fertilised egg).
I suspect that if that pairing has consistently produced normal offspring that two axanthic genes are incompatible with life.