A science hero was not born with superpowers, but aquired them at some stage in life. Often this involved an accident or exposure to some unusual phenomena, commonly involving mutagens or wierd radiation. Whatevere it was, it changed your genetic structure permanently; your descendants will most probably be mutants.
Asa science hero, you can have any set of powers imaginable.
In effect, there is little difference between the science and mutation origins. In effect, all science heroes are now mutants, only they got their powers during their lifetimes and have a pre-super life to fall back on. This colors their outlook and relationships.
You can choose Cyber, Fu, Guns, Items, Pulp, Sorcery, or Super as the type of schctick you pay normal cost for.