Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 9.4, Problem 1TQ
Summary Introduction
To review:
The retaining of wild-type sequence from the donor by the recipient cell through the mismatch repair process.
Introduction:
Mismatch repair is a process where errors in insertion, deletion, and misincorporation in the base pairs are recognized that may have occurred during replication and recombination. It repairs the DNA (deoxyribonucleic acid) damage. It maintains cellular homeostasis as well as genomic stability. The mismatch repair mechanisms replace or remove the mismatched bases through the insertion or deletion process.
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There are two types of excision repair, base excision repair (BER) and nucleotide excision repair (NER).
Which enzymes are used in Base excision repair in E. coli?And In nucleotide excision repair, what kind of damage is repaired by this mechanism and why are cutsmade on both sides of the damaged region of DNA?
According to the double-strand break model, does gene conversionnecessarily involve DNA mismatch repair? Explain.
A pyrimidine dimer which is a bulky lesion has mutated an E. coli cell's DNA. Describe both the photoreactivation enzyme repair (PRE) and Nucleotide excision repair describe how the cell uses Uvr A, B, C, D gene products to effect repair.
Chapter 9 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 9.1 - Prob. 1TQCh. 9.1 - Prob. 2TQCh. 9.1 - Prob. 3TQCh. 9.1 - Prob. 4TQCh. 9.2 - Prob. 1TQCh. 9.3 - Prob. 1TQCh. 9.4 - Prob. 1TQCh. 9.4 - Prob. 2TQCh. 9.5 - Prob. 1TQCh. 9.6 - Prob. 1TQ
Ch. 9 - Prob. 1RQCh. 9 - Prob. 2RQCh. 9 - Prob. 3RQCh. 9 - Prob. 4RQCh. 9 - Prob. 5RQCh. 9 - Prob. 6RQCh. 9 - Prob. 7RQCh. 9 - Prob. 8RQCh. 9 - Prob. 9RQCh. 9 - Prob. 10RQCh. 9 - Prob. 11RQCh. 9 - Prob. 12RQCh. 9 - Prob. 13RQCh. 9 - Prob. 14RQCh. 9 - Prob. 15RQCh. 9 - Prob. 16RQCh. 9 - Prob. 1TQCh. 9 - Prob. 2TQCh. 9 - Prob. 3TQCh. 9 - Prob. 4TQCh. 9 - Prob. 5TQCh. 9 - Prob. 6TQ
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