I've always thought that the majority of the "work" in a cell is protein production, until I read the following.
The Wikipedia article on the central dogma of molecular biology states this:
80% of the human genome is transcribed even though only 1% codes for proteins.
Current research focuses on investigating the function of non-coding RNA, that is, RNA that does not follow the dogma trend and does not code for polypeptides.
If 99% of what's transcribed isn't used for creating proteins, what is it used for? If it's not known - are there any hypotheses?