Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Textbook Question
Chapter 4.6, Problem 1CR
How does the archaeal RNA polymerase differ from that in Bacteria? How does the initiation of transcription in the two domains differ? Why do eukaryotic mRNAs have to be “processed” whereas most prokaryotic RNAs do not?
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What is its functional difference with the RNA polymerases found in both eukaryotic and prokaryotic cells?
. How many components are there in RNA polymerase of prokaryotes? List down the functions of each component.
What is the difference between eukaryotes and prokaryotes in terms of RNA polymerase?
Chapter 4 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 4.1 - What is a genome and what is it composed of? What...Ch. 4.1 - Define the terms complementary and antiparallel as...Ch. 4.1 - Why is supercoiling essential to a bacterial cell?...Ch. 4.1 - Describe the central dogma of molecular biology....Ch. 4.2 - Approximately how large is the Escherichia coli...Ch. 4.2 - Prob. 2MQCh. 4.2 - Prob. 3MQCh. 4.2 - Prob. 1CRCh. 4.3 - Prob. 1MQCh. 4.3 - To which end (5 or 3) of a newly synthesized...
Ch. 4.3 - Prob. 3MQCh. 4.3 - What are the functions of DNA Pol I and III and...Ch. 4.3 - What is meant by the term semiconservative...Ch. 4.4 - Prob. 1MQCh. 4.4 - Prob. 2MQCh. 4.4 - Prob. 3MQCh. 4.4 - Prob. 1CRCh. 4.5 - What enzyme catalyzes transcription? What is a...Ch. 4.5 - Prob. 2MQCh. 4.5 - Prob. 3MQCh. 4.5 - Prob. 4MQCh. 4.5 - Prob. 1CRCh. 4.6 - What three major components make up an archaeal...Ch. 4.6 - Prob. 2MQCh. 4.6 - Prob. 3MQCh. 4.6 - How does the archaeal RNA polymerase differ from...Ch. 4.7 - Prob. 1MQCh. 4.7 - Differentiate between the different classes of...Ch. 4.7 - Prob. 3MQCh. 4.7 - Describe the two types of secondary structure a...Ch. 4.8 - Prob. 1MQCh. 4.8 - What is the function of the acceptor stem of a...Ch. 4.8 - Prob. 3MQCh. 4.8 - Prob. 1CRCh. 4.9 - Prob. 1MQCh. 4.9 - Prob. 2MQCh. 4.9 - Prob. 3MQCh. 4.9 - Why is the genetic code a degenerate code? What is...Ch. 4.10 - What are the components of a ribosome? What...Ch. 4.10 - How is a completed polypeptide chain released from...Ch. 4.10 - How does tmRNA free stalled ribosomes?Ch. 4.10 - Where on the ribosome do tRNAs bind, and what is...Ch. 4.11 - What are molecular chaperones and why are they...Ch. 4.11 - What macromolecules are protected by heat shock...Ch. 4.11 - How do chaperones assist the Escherichia coli cell...Ch. 4.11 - What proteins are involved in refolding misfolded...Ch. 4.12 - Prob. 1MQCh. 4.12 - Prob. 2MQCh. 4.12 - Prob. 3MQCh. 4.12 - Prob. 1CRCh. 4.13 - Prob. 1MQCh. 4.13 - Prob. 2MQCh. 4.13 - Prob. 3MQCh. 4.13 - Prob. 1CRCh. 4 - The genome of the bacterium Neisseria gonorrhoeae...Ch. 4 - Compare and contrast the activity of DNA and RNA...Ch. 4 - What would be the result (in terms of protein...
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- How is the initiation codon, identified by the ribosomes during translation in prokaryotes (3) and eukaryotes (2)arrow_forwardWhy can it be said that transcription of thebacteriophage T7 genome requires two enzymes?arrow_forwardWhy do scientists think that RNA silencing is an evolutionarily conserved process?arrow_forward
- If the following RNA polymerases were missing from a eukaryotic cell, what types of genes would not be transcribed? A. RNA polymerase I C. RNA polymerase III B. RNA polymerase IIarrow_forwardWhat is the subunit composition of bacterial RNA polymerase holoenzyme? What are the functional roles of the different subunits?arrow_forwardWhat are examples of chemical modifications of transcribed RNA(tRNA) ineukaryotes vs. archaea or bacteria?arrow_forward
- What could be the advantages and disadvantages of simultaneous translation and transcription in prokaryotes?arrow_forwardWhat is the subunit composition of bacterial RNA polymerase holoenzyme? What are the functional roles of the subunits?arrow_forwardHow does translation in prokaryotes begin before transcription ends?arrow_forward
- Which type of RNA serves as the genetic template (blueprint) utilized by the ribosome during the process of translation? Transfer RNA’s (tRNA) Messenger RNA’s (mRNA) Ribosomal RNA’s (rRNA) RNA Polymerasearrow_forwardMessenger RNA in eukaryotic cells is synthesized by which of the following enzymes (stronglyinhibited by even very dilute concentrations of the fungal poison a-amanitin)?A. DNA polymerase IIIB. RNA polymerase IIIC. RNA polymerase IID. DNA polymerase IE. RNA polymerase Iarrow_forwardThe 5′ region of the TPP riboswitch in Bacillus subtilis is very similar to the TPP riboswitch in E. coli. Even so, the riboswitch in B. subtilis regulates transcription, whereas the one in E. coli regulates translation. What is the role of the 5′ region in both riboswitches? How can one riboswitch regulate transcription while the other regulates translation?arrow_forward
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