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 11.2, Problem 1TQ
Summary Introduction
To review:
Recombination in influenza and lambda phage genome.
Introduction:
Viruses are entities that remain non-living until they enter the body of a host. Influenza virus and lambda phage are animal and bacterial viruses, respectively. The genome of influenza virus consists of eight negative sense RNA (ribonucleic acid). The genome of lambda phage is a linear double stranded DNA (deoxyribonucleic acid).
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Microbiology: An Evolving Science (Fourth Edition)
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- One of the reasons why phage therapy has not been applied widely is that bacteria can become resistant to bacteriophages as well, through mutations in genes encoding for specific proteins. What would be a protein in the bacterial cell that, if mutated, would make that cell resistant to phage infection?arrow_forwardwhen various strains of lambda phage are seeded on a lawn of e.coli, they can form clear or turbid plaques. Explain the difference between the two types of plaques. can all bacteriophage form clear and turbid plaques?arrow_forwardWhen various strains of λ phage are seeded on a lawn of E. coli, they can form clear or turbid plaques. (b) For mutant λ phages that can only form clear plaques, give two different types of mutation in the phage that can explain the clear plaque phenotype.arrow_forward
- How is genome replicated in M13 bacteriophage?arrow_forwardWhat is a transducing phage?arrow_forwardThe figure above shows a schematic of genes and transcription control elements from phage λ. Use this figure as an aid to help you describe the molecular events involved in: a) The establishment of lysogeny b) The establishment of a lytic life cyclearrow_forward
- Discuss retroregulation and its significance in the biology of bacteriophage lambda during: a) Phage infection b) Prophage inductionarrow_forwardAfter a phage injects its DNA into a bacterial cell, the cell begins making proteins that make up the phage coat. Why does the same thing not happen when a generalized transducing particle injects the DNA it carries?arrow_forwardWhat is the term used to describe the genome of a bacterial cell that has been infected by a phage utilizing lysogeny? O 1) nucleocapsid O 2) prophpage O 3) provirus O 4) lysogenome O 5) chromatidarrow_forward
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