handout11transcrla - Bio 311C Buskirk Handout 11...

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Bio 311C, Buskirk Handout 11 – Transcription and the genetic code for Oct 25, 27 Read Chapter 17, beginning on page 328 (NOT: Beadle-Tatum experiment). Figures 17.3, 17.4, 17.7, 17.8, 17.9, 17.10, 17.11, 17.12, 17.17, 17.18, 17.20, 17.21, 17.22, 17.24, and especially 17.25 Concept checks 17.1, 17.2, 17.3, 17.5, 17.6. Learning Objectives: 3-27. Compare and contrast each pair: (a) DNA and RNA nucleotides & structure, (b) DNA polymerase and RNA polymerase, (c) replication (of DNA) and transcription; (d) primer and promoter. 3-28. What does it mean to say that information flows from DNA to RNA to protein? 3-29. Compare and contrast replication and transcription: In what part of the euk. cell does each occur? At what part of the DNA does each begin? What is the enzyme involved? Can that enzyme initiate a chain? What does the enzyme add in order to extend the chain, and to what? 3-30. What is the enzyme that accomplishes transcription? How does it recognize where to begin making RNA? 3-31. What is a promoter, and is it located at the upstream or downstream end of the transcription unit?
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