Transcription: DNA  hnRNA
{"Image DocumentName": "Transcription: DNA \uf0e0 hnRNA", "Image ImageDescription": "Transcription occurs in the nucleus. \u03c3 factor from RNA polymerase reads the promoter sequence and opens a small portion of the double helix exposing the DNA bases. RNA polymerase II catalyzes the formation of phosphodiester bond that link nucleotides together to form a linear chain from 5\u2019 to 3\u2019 by unwinding the helix just ahead of the active site for polymerization of complementary base pairs. The hydrolysis of high energy bonds of the substrates (nucleoside triphosphates ATP, CTP, GTP, and UTP) provides energy to drive the reaction. During transcription, the DNA helix reforms as RNA forms. When the terminator sequence is met, polymerase halts and releases both the DNA template and the RNA.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}