User blog comment:Lord Caesar/Radioactive Spider/@comment-3406131-20130718125121/@comment-3406131-20130720004928

2. Well, the X-Gene science is quite unexplained. I tried to wrote the article on it, but even the transmission isn't really clear, as the gene seems to pop among X-negative subjects, even grown-up (see also changelings, latents, ..).

Concerning the X-Gene way to express, Beast explained the thing in some Astonishing X-Men with the triploid mutants: The X-Gene create a protein who mutated the whole genome into a fully functional specimen on most of the subjects, and with more or less extraordinary capacities for most of them.

And concerning the powers given, there is obviously a legacy factor, regarding to the families (Syrin/Banshee; Wanda/Pietro/Speed/Wiccan; Magneto/Polaris; Wolverine/Daken/one of the Mongrel; etc) and to the Neyaphems and Cherayaphems; But I'm not sure there is a non-aleatory factor for the first generations mutants.

3. Well, we can say that, that not the worst Marvel fact. 4. There was a thing like that with Spider-Man and Hulk I think. But among the years, the unique genetic make-ups have become a little bit too common.

And not everyone has the X-Gene, even if a large percentage can express it at some time.

Concerning Spider-Man, definitively not a mutant for now, but a mutate, a human possessing the vestigial insect gene (useless for a non-mutant), and maybe two or three magical things with the spider symbolic.

1. Sure green is more interesting for the readers than invisibles rays..