Not sure what you mean, if its genetic or not?

Like all albinism, the limburg albino is caused by a simple recessive mutation.

I believe Michael bred limburg albinos with the San Matias canyon mono-strip rosys.
He then bred those het babies to each other, which produced some boas that had the limburg albinism expressed, as well as the reduced lateral striping of the san matias mono-strips.

At least, that's how I think mike produced em. The only thing I know for sure is that they are REALLY cool looking.
Josh