PRESCOTT'S MICROBIOLOGY
11th Edition
ISBN: 2818440045677
Author: WILLEY
Publisher: MCG
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Chapter 16.3, Problem 1MI
How is mismatch repair similar to DNA polymerase proofreading? How is it different?
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Chapter 16 Solutions
PRESCOTT'S MICROBIOLOGY
Ch. 16.1 - Retrieve, Infer, Apply List three ways in which...Ch. 16.1 - Compare and contrast the means by which the...Ch. 16.1 - Give examples of intragenic and extragenic...Ch. 16.1 - Retrieve, Infer, Apply Sometimes a point mutation...Ch. 16.1 - Retrieve, Infer, Apply Why might a missense...Ch. 16.2 - How would you screen for a tryptophan auxotroph?...Ch. 16.2 - Why is a small amount of histidine added to the...Ch. 16.2 - Retrieve, Infer, Apply Describe how replica...Ch. 16.2 - Retrieve, Infer, Apply Why are mutant selection...Ch. 16.2 - Retrieve, Infer, Apply Briefly discuss how...
Ch. 16.2 - Describe how you would isolate a mutant that...Ch. 16.2 - Prob. 5CCCh. 16.3 - How is mismatch repair similar to DNA polymerase...Ch. 16.3 - How is damaged DNA recognized by the UvrAB...Ch. 16.3 - Prob. 1CCCh. 16.3 - Retrieve, Infer, Apply What role does DNA...Ch. 16.3 - Retrieve, Infer, Apply When E. coli cells are...Ch. 16.3 - Explain how the following DNA alterations and...Ch. 16.4 - An antibiotic-resistance gene located on a...Ch. 16.4 - What four fates can DNA have after entering a...Ch. 16.4 - How does homologous recombination differ from...Ch. 16.5 - What features are common to all types of...Ch. 16.5 - How does a transposon differ from an insertion...Ch. 16.5 - What is simple (cut-and-paste) transposition? What...Ch. 16.5 - What effect would you expect the existence of...Ch. 16.6 - Prob. 1MICh. 16.6 - What is bacterial conjugation and how was it...Ch. 16.6 - For F+, Hfr, and F strains of E. coli, indicate...Ch. 16.6 - Describe how F+ F and Hfr conjugation processes...Ch. 16.6 - Compare and contract F+ F and F F conjugation.Ch. 16.7 - According to this model, what would happen if DNA...Ch. 16.7 - Prob. 1CCCh. 16.7 - Describe how transformation occurs in S....Ch. 16.7 - Discuss two ways in which artificial...Ch. 16.8 - Compare the number of transducing particles that...Ch. 16.8 - Why cant the gal and bio genes be transduced by...Ch. 16.8 - Describe generalized transduction and how it...Ch. 16.8 - What is specialized transduction and how does it...Ch. 16.8 - How might one tell whether horizontal gene...Ch. 16.8 - Why doesnt a cell lyse after successful...Ch. 16.8 - Describe how conjugation, transformation, and...Ch. 16.9 - As a replicative transposon, what would happen if...Ch. 16 - Prob. 1RCCh. 16 - Prob. 2RCCh. 16 - Prob. 3RCCh. 16 - Prob. 4RCCh. 16 - Prob. 5RCCh. 16 - Prob. 6RCCh. 16 - Mutations are often considered harmful. Give an...Ch. 16 - Mistakes made during transcription affect the cell...Ch. 16 - Suppose that transduction took place when a U-tube...Ch. 16 - Suppose that you carried out a U-tube experiment...Ch. 16 - Prob. 5ALCh. 16 - Prob. 6ALCh. 16 - Prob. 7AL
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- How do the enzymes involved in the mismatch repair process determine which of the two bases in the mismatch must be excised and repaired? The enzymes will always remove the nucleotide carrying a purine base. None of the other answers are correct. The enzymes will induce DNA polymerase to proofread the newly made DNA strand. The enzymes will remove the nucleotide carrying a base that has undergone a tautomeric shift. The enzymes will recognize and cleave nucleotides from an non-methylated DNA strand. O Oarrow_forwardWhat is a processive enzyme? Explain why processivity is an important feature of DNA polymerase.arrow_forwardhow can denaturing environment be created during electrophoresis? which bonds are broken during DNA denaturation?arrow_forward
- Explain how mismatch repair fixes incorrectly matched base pairs.arrow_forwardWhat are the two major mechanisms for the repair of double-strand breaks? How do they differ?arrow_forwardWhat enzymatic features of DNA polymerase prevent it from replicating one of the DNA strands at the ends of linear chromosomes? Compared with DNA polymerase, how is telomerase different in its ability to synthesize a DNA strand? What does telomerase use as its template for the synthesis of a DNA strand? How does the use of this template result in a telomere sequence that is tandemly repetitive?arrow_forward
- Is DNA strand breakage necessary for catenane separation?arrow_forwardTwo pathways, homologous recombination and nonhomologous end joining (NHEJ), can repair double-strandbreaks in DNA. If homologous recombination is an errorfree pathway whereas NHEJ is not always error free, whyis NHEJ used most of the time in eukaryotes?arrow_forwardWhat is the advantage of homology-directed repair (HDR) ?arrow_forward
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