Fun fact: the description of this subset of the role of RNA is factually accurate, and a whole hell of a lot more concise than anything one is likely to find in a text on the subject. (Sidenote: if any biologists in the audience would like to object, please do let me know. I'd like that section to be as accurate as possible, of course, so if I erred, let me know!) I actually don't understand this anymore. Way to go me, forgetting everything I learned in bio. It's taken almost work for word from an actual conversation, so I assume it's logically sensible. As for what it means... well, find a biologally-inclined pal and ask 'em.