03:05 Rho and other protein RNA polymerase is an enzyme that catalyzes the formation of the phosphodiester bond aids in the initiation and elongation of transcription. The aforementioned video gives a concise account of RNA polymerase. Timeline: 00:00 introduction 01:20 RNA polymerase 02:52 what does RNA polymerase needs? 05:09 how RNA polymerase works? 09:40 summary