This document discusses the structure and function of RNA and the process of protein synthesis. It begins by describing the basic components of an RNA molecule, including ribose sugars, phosphates, and nitrogenous bases. It then explains the three main types of RNA - mRNA, tRNA, and rRNA - and their roles in protein synthesis. The document concludes by providing a detailed overview of the multi-step process of transcription, where DNA is copied into mRNA, and translation, where the mRNA code is used to synthesize proteins with the help of tRNA and rRNA.