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?
What is the difference between eukaryotes and prokaryotes in terms of RNA polymerase?
26) Eukaryotes are unable to couple transcription and translation because:
A) the two processes occur in separate regions of the cell
B) they do not have the specialized ribosomes that occur in bacteria
C) the genetic code in eukaryotes is incompatible with the formation of polyribosomes
D) the mRNA of eukaryotes do not have the appropriate spacers that polycistrons allow for polyribosomes to form
E) eukaryotic mRNA molecules are monocistronic.
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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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- Where does the energy of such reaction catalyzed by an RNA polymerase come from?arrow_forwardWhich of the following parts of translation is significantly different in eukaryotes and prokaryotes?Question 25 options: A) the presence of a start codon B) the genetic code C) Initial binding of mRNA by ribosomes D) movement of mRNA and tRNA through the 3 sites on the ribosome E) binding of tRNAs to mRNAsarrow_forwardWhat function do the prokaryotic rRNAs provide to the ribosome? Question 38 options: A) catalyze the formation of peptide bonds B) base-pair with the Shine-Dalgarno sequence during initiation C) base-pair with the mRNA codons D) base-pair with the tRNAs E) both A and B are correctarrow_forward
- A given coding strand sequence in a Eukaryote is as follows 5'GGGAATATAA GACCGATGGA GGGTACAG CCCTATCAC GATACGCAGG ATAGCAGCA 3" a) Mark the promoter in blue and transcribe from the G after the promoter. b) Translate the mRNA made c) The mRNA made by the cell was 10 nucleotides shorter than what you have made. What could have happened? d) EXTRA practice: A particular triplet of bases in the coding strand of DNA is 5'GAC 3'. What is the amino acid for this codon and will be the anticodon on the tRNA that binds the mRNA codon?arrow_forwardIdentify whether each of the following descriptions applies to typical prokaryotic genomes only, typical eukaryotic genomes only, both, or neither, according to lecture. Answer options may be used more than once or not at all. Composed of double-stranded DNA only. Each chromosome has a centromere. Species with larger genomes have more genes. [Choose ] [Choose ] prokaryotes only neither eukaryotes or prokaryotes eukaryotes only both prokaryotes and eukaryotes [Choose ]arrow_forwardWhat are examples of chemical modifications of transcribed RNA(tRNA) ineukaryotes vs. archaea or bacteria?arrow_forward
- What are the differences between translation and transcription in bacteria and eukaryotes? Give a brief description of how transcription works in bacteria using the words: initiation, elongation, and termination. Give a brief description of how mRNA is transcribed in the nucleus and leaves the nucleus. Must use words: 3’ cap, 5’ tail, ribsome, gene splicing, introns, nuclear pore.arrow_forwardWhat could be the advantages and disadvantages of simultaneous translation and transcription in prokaryotes?arrow_forwardWhat could a eukaryotic cell do during the transcription or translation process to stop a certain protein from being made? What could a eukaryotic cell do during the transcription or translation process to increase the production of a protein?arrow_forward
- In bacterial genes, as soon as any partial mRNA transcript is produced by the RNA polymerase system, the ribosome assembles on it and starts translating. Draw a diagram of this process, identifying 5′ and 3′ ends of mRNA, the COOH and NH2 ends of the protein, the RNA polymerase, and at least one ribosome. Why couldn’t this system work in eukaryotes?arrow_forward14) Why are telomeres so important in eukaryotic organisms? A) Without telomeres, important DNA could be lost every time the cell divides. B) They cap the mRNA, allowing it to pass through the nuclear membrane to the cytoplasm fo translation. C) They provide a repetitive DNA sequence needed by primers to recognize the beginning of transcription. D) They remain relatively undamaged from environmental stress and toxins.arrow_forwardWhat types of RNA are found in yeast cells?arrow_forward
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