Mutations in the germ line only. If you are not familiar with hemophiliacs, read the history of Queen Victoria. Just such a thing hapened there.
Just as well, too. When I was young, I was badly sunburned leaving some ugly scar tissue on my forehead. I wouldn't want to pass that on to my kids :-)
Sorry, you are using nomenclature unfamiliar to me. What is the "germ line" ? It sounds like a bunch amoebae with linked pseudopods, dancing together on a tiny stage, while holding carbon nanotube top hats and canes... like something out of Far Side cartoon.
Full Disclosure: Yeah, yeah, I know. But I was up till 2:30 on this thread, and went to see Cats last night as well...
Cheers!
But... Wouldn't a dehydrated toad find it a bit hard to pee?