NESTER'S MICROBIOLOGY-CONNECT >CUSTOM<
9th Edition
ISBN: 9781265432287
Author: Anderson
Publisher: MCG CUSTOM
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Chapter 8, Problem 1A
Some bacteria may have higher mutation rates than others following exposure to UV light. Discuss a reason why this might be the case. What experiments could you do to determine whether this is a likely possibility?
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As shown , several medical agents are now commercially produced by genetically engineered microorganisms. Discuss the advantages and disadvantages of making these agents this way.
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Consider the following experiment. First, large populations of two mutant strains of Escherichia coli are mixed, each requiring a different, single amino acid. After plating them onto a minimal medium, 45 colonies grew. Which of the following may explain this result?
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C) Either A or B is possible.
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Chapter 8 Solutions
NESTER'S MICROBIOLOGY-CONNECT >CUSTOM<
Ch. 8 - Prob. 1SACh. 8 - Why is deleting one nucleotide generally more...Ch. 8 -
3. What type of mutation in an operon is most...Ch. 8 -
4. What is meant by "proofreading" with respect...Ch. 8 - Why would a cell use SOS repair, considering that...Ch. 8 - Why is replica plating used to isolate an...Ch. 8 - What is transduction?Ch. 8 -
8. How is an F+ strain different from an Hfr...Ch. 8 - Name four mobile genetic elements.Ch. 8 - Why are R plasmids important?
Ch. 8 - UV light exposure forms a) covalent bonds between...Ch. 8 -
2. If cells were exposed to UV light, the highest...Ch. 8 -
3. Penicillin enrichment of mutants works on the...Ch. 8 -
4. Mechanisms that repair errors in nucleotide...Ch. 8 -
5. You are trying to isolate a mutant of...Ch. 8 -
6. All plasmids
1) carry genes for antimicrobial...Ch. 8 -
7. Adding DNase to a mixture of donor and...Ch. 8 -
8. An F pilus or its equivalent is essential...Ch. 8 - A plasmid that can replicate in E. coli and...Ch. 8 -
10. The frequency of transfer of an F' molecule...Ch. 8 -
1. Some bacteria may have higher mutation rates...Ch. 8 -
2. A pharmaceutical researcher is disturbed to...Ch. 8 - Prob. 1CTCh. 8 -
2. You have isolated a strain of E. coli that is...
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