CHAPTER 8 RNA: Transcription and Processing CHAPTER 8 RNA: Transcription and Processing Copyright 2008 © W H Freeman and Company.

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CHAPTER 8 RNA: Transcription and Processing CHAPTER 8 RNA: Transcription and Processing Copyright 2008 © W H Freeman and Company

CHAPTER OUTLINE 8.1 RNA 8.2 Transcription 8.3 Transcription in eukaryotes 8.4 Functional RNAs

RNA polymerase in action Chapter 8 Opener

RNA

Eukaryotic mRNA moves from nucleus to cytoplasm Figure 8-1

Unnumbered figure pg 297

Unnumbered figure pg 298

The four ribonucleotides found in RNA Figure 8-2

Transcription

Opposite DNA strands can serve as template for RNA Figure 8-3

Overview of transcription Figure 8-4

Many RNAs can be simultaneously transcribed from a gene Figure 8-5

Sequences of DNA and transcribed RNA Figure 8-6

Promoter sequences in E. coli Figure 8-7

Transcription initiation in prokaryotes Figure 8-8

Elongation and termination of transcription Figure 8-9

Elongation and termination of transcription Figure 8-9a

Elongation and termination of transcription Figure 8-9b

A bacterial transcription-termination site Figure 8-10

Transcription in eukaryotes

Prokaryotic and eukaryotic transcription and translation compared Figure 8-11

Transcription initiation in eukaryotes Figure 8-12

Transcription initiation in eukaryotes Figure 8-12 part 1

Transcription initiation in eukaryotes Figure 8-12 part 2

Cotranscriptional processing of RNA Figure 8-13

Cotranscriptional processing of RNA Figure 8-13a

Cotranscriptional processing of RNA Figure 8-13b

Cotranscriptional processing of RNA Figure 8-13c

Complex patterns of eukaryotic mRNA splicing Figure 8-14

Functional RNAs

Conserved sequences related to intron splicing Figure 8-15

Spliceosome assembly and function Figure 8-16

Spliceosome assembly and function Figure 8-16 part 1

Spliceosome assembly and function Figure 8-16 part 2

Reactions in exon splicing Figure 8-17

Self-splicing reaction Figure 8-18

Self-splicing reaction Figure 8-18 part 1

Self-splicing reaction Figure 8-18 part 2

Small RNAs were the breakthrough of the year Figure 8-19

Petunia flowers demonstrating cosuppression Figure 8-20

Mechanism of action of RNAi Figure 8-21

A way to generate double-stranded RNA in a cell Figure 8-22