5. Transcription selectively copies only certain parts of the genome and makes one to several hundred, or even thousand copies of any given section of the genome(Replication?)
7 5.Transcription selectively copies only certain parts of the genome and makes one to several hundred, or even thousand, copies of any given section of the genome. (Replication?)
DNA duplex m RNA Transcription bubble Fig 12-1 Transcription of DNA into RNA
8 Fig 12-1 Transcription of DNA into RNA Transcription bubble
C9HAPTER12: Mechanisms of transcription Topic 1: RNA Polymerase and The Transcription Cycle See the interactive animation 刻博来字 Wuhan Universit
9 Topic 1: RNA Polymerase and The Transcription Cycle CHAPTER12: Mechanisms of Transcription See the interactive animation
RNA polymerases come in s different forms but share many features a- RNA polymerases performs essentially the same reaction in all cells a- Bacteria have only a single e. RNA polymerases while in eukaryotic cells there are 9 three: RNA Pol I, II and III 10
10 RNA polymerases come in different forms, but share many features ◼ RNA polymerases performs essentially the same reaction in all cells ◼ Bacteria have only a single RNA polymerases while in eukaryotic cells there are three: RNA Pol I, II and III RNA polymerase and the transcription cycle
rna Pol Ii is the focus of eukaryotic transcription, because it is the most studied polymerase and is also responsible for transcribing most genes-indeed essentially all protein-encoding genes a RNA Pol I transcribe the large ribosomal RNa precursor gene RNA Pol II transcribe tRNA gene some small nuclear RNA genes and the 5s rRNA genes
11 ◼ RNA Pol II is the focus of eukaryotic transcription, because it is the most studied polymerase, and is also responsible for transcribing most genes-indeed, essentially all protein-encoding genes ◼ RNA Pol I transcribe the large ribosomal RNA precursor gene ◼ RNA Pol II transcribe tRNA gene, some small nuclear RNA genes and the 5S rRNA genes