In Marvelcomic books, particularly those of the X-Men franchise, a mutant is a human being who is born with genetic modifications that allow for abilities not possessed by regular humans.
Marvel editors draw a distinction between mutants born with the potential for powers, such as the members of the X-Men, and those persons who develop powers because of a mutagenic event, such as Spider-Man or the Hulk.
Mutants such as the Scarlet Witch and her brother Quicksilver for example, who incidentally are Magneto's children, haven't received the same treatment as other mutants have by the majority of the ordinary human population.
In Marvelcomic books, particularly those of the X-Men mythos, a mutant is a human being who is born with genetic modifications that allow for abilities not possessed by regular humans.
With most mutant powers manifesting at puberty and the large number of young mutants who are rejected by their families, mutation parallels the realization that many young gay people have of their homosexuality in their teen years and the rejection and ostracization from family they experience.
Morrison also introduced the idea of the growing mutant youth population developing a subculture with mutant bands and fashions, and the subsequent adoption of that subculture by rebellious non-mutant youth, the latter being similar to the concept of a wigger.