RNAtrain:What is non-coding RNA?
For quite a long time, it was assumed that RNA molecules were merely the ephemeral intermediates between DNA and proteins. Indeed, messenger RNA (mRNA) is copied from genes and later translated by ribosomes into peptides, with the help of transfer RNA (tRNA), obediently bringing amino acids to the protein building site, leading to the "one gene, one protein" hypothesis.
Over the last five decades however, it has become more and more clear, that RNA molecules have a quite exciting life on their own and that there are tons of different types of RNA molecules in one single cell. Far from being simple messengers, RNA can