I don’t know the genetics of the female although I know that the male is normal. Usually leopard geckos have four or five bands on the tail and they fade as the gecko matures. Some geckos have different banding/striping, but they are different morphs. But usually they are more pronounced than this. So I don’t know if it’s a specific genetic trait or if it’s just something this individual happened to have and it doesn’t mean he’s any specific morph.