For those of you who have not seen it, I thought you may find this GamesRadar article on Fallout to be an interesting read;
http://www.gamesradar.com/science-games-fallout-part-1/

They're not even going to touch the parts where the Fallout 1 writers showed their work on biology, are they.
*sighs*
That's one of the things which actually disappointed me about Fallout 3. No real bones tossed to the nerds.

Part 2 just out; http://www.gamesradar.com/science-fallout-part-2/

I feel like this writer didn't play the first game.
The quad helix only increased the redundancy of transcription and curtailed genetic damage. It didn't create giant monsters. The giant muscly stuff was, as I recall, because of military interests hijacking the project and deliberately tailoring the FEV for gene therapy. Is that how you remember it?
"They’re not inherently impossible..."
THAT is what I love about Fallout 1. Plausible. Absurd, but plausible. Not everything, just the big stuff, really.