Thread:Jasonmaia/@comment-3406131-20150708225727/@comment-3406131-20150709173501

That's the basic understanding, opposed to mutates. It has evolved to become "humans with a X-Gene, or Homo superior. Because in some ways, the Celestials have created the mutants (though I haven't found yet a ref). In some cases, it is triggered by radiations, but the gamma gene is also triggered, the Inhumans genome...

But I don't recall exactly everything that happens in Earth X, so I may be wrong about the fact they aren't mutants. Or there is something.