And the molecule that brings the amino acid into that ribosome is our transfer RNA. So transfer RNA are specialized molecules that collect the proper or appropriate amino acid and bring it into the ribosome where that amino acid is then attached to the growing polypeptide chain. So we see that all three of these different types of RNA molecules are synthesized inside the nucleus and they're all involved in the process in the synthesis of our proteins. And each one of these different types of RNA molecules serves its own unique function. So the messenger RNA basically contains the genetic information, the codons, that basically code for our protein, the ribosomal. RNA are integral parts of ribosomes which are the machinery that basically synthesize our proteins.