From what I, a completely impartial third party viewer, can tell, yes.

After all, you should never need to play a race to play a character.

And as for mutations, you'd need to be exposed to radiation for that.
And that's fairly deadly even in small doses. On the scale to actually mutate you? Radiation poisoning. Or instant death as your more complicated organs boil and fail, and then-
Well, you get the idea. Almost certain death for the possibility of a mutation that will probably just be a hideous bulge. That will also kill you.

Depending on how realistic we're treating Radiation, of course.

If we're treating it as a bit less... super-deadly, then I'd suggest only very minor, non-useful mutations. Otherwise everyone will want one!
Which is kind of not the point of mutation.