Other
Molecular Biology Notebook: Structure of Rna
Read about the structure of RNA, its components, and how they fit together. This source includes visual aids to help you and a list of the different kinds of RNA and their functions.
Khan Academy
Khan Academy: Overview of Transcription
Find out about the process of transcription, where the DNA sequence of a gene is transcribed to make an RNA molecule.
Other
Evidence for Evolution: Genetic Code
These pages are part of a site called Evolution that accompany a textbook by the same name. Mark Ridley is the author. In this section: the universal genetic code provides evidence that life has a common ancestor.