I've never heard that about genetic stripes. Some morphs are prone to certain problems, like spider & woma for wobbles, caramel albino for kinks, black pastel for head deformities, but those are generally only if you breed two of the same morph together. If bred to a different morph, the chances of a problem are greatly reduced. But either way, I've never heard genetic stripe included in that list... But I'm not an expert.