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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Chapter 11.7, Problem 2MQ
- What is the major difference between generalized transduction and transformation?
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Chapter 11 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 11.1 - Distinguish between a mutation and a mutant.Ch. 11.1 - Distinguish between screening and selection.Ch. 11.1 - Prob. 3MQCh. 11.1 - Write a one-sentence definition of the term...Ch. 11.2 - Do missense mutations occur in genes encoding...Ch. 11.2 - Why do frameshift mutations generally have more...Ch. 11.2 - Prob. 1CRCh. 11.3 - Why are suppressor tRNA mutations not lethal?Ch. 11.3 - Which class of mutation, missense or nonsense, is...Ch. 11.3 - What is the difference between same-site and...
Ch. 11.4 - Prob. 1MQCh. 11.4 - Prob. 2MQCh. 11.4 - Prob. 1CRCh. 11.5 - Which protein, found in virtually all cells,...Ch. 11.5 - Explain the fate of transferred chromosomal DNA if...Ch. 11.5 - Prob. 3MQCh. 11.5 - What are heteroduplex regions of DNA and what...Ch. 11.6 - During transformation a cell usually incorporates...Ch. 11.6 - In genetic transformation, what is meant by the...Ch. 11.6 - QExplain why recipient cells do not successfully...Ch. 11.7 - Prob. 1MQCh. 11.7 - What is the major difference between generalized...Ch. 11.7 - Why is phage conversion considered beneficial to...Ch. 11.7 - QExplain how a generalized transducing particle...Ch. 11.8 - In conjugation, how are donor and recipient cells...Ch. 11.8 - Explain how rolling circle DNA replication allows...Ch. 11.8 - QWhat is a sex pilus and which cell type, F or F+,...Ch. 11.9 - In conjugation involving the F plasmid of...Ch. 11.9 - Prob. 2MQCh. 11.9 - Prob. 3MQCh. 11.9 - QWhat is a merodiploid and how does an F plasmid...Ch. 11.10 - Why is it usually more difficult to select...Ch. 11.10 - Why do penicillins not kill species of Archaea?Ch. 11.10 - Explain one type of conjugation in Archaea and how...Ch. 11.11 - Prob. 1MQCh. 11.11 - What is the significance of the terminal inverted...Ch. 11.11 - How can transposons be used in bacterial genetics?Ch. 11.11 - Prob. 1CRCh. 11.12 - Why is the CRISPR system considered a prokaryotic...Ch. 11.12 - Prob. 2MQCh. 11.12 - QExplain why incoming DNA recognized by a short...Ch. 11 - A constitutive mutant is a strain that...Ch. 11 - Although a large number of mutagenic chemicals are...Ch. 11 - Why is it difficult in a single experiment to...Ch. 11 - Prob. 4AQ
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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? A) The colonies may be due to back mutation (reversion). B) The colonies may be due to recombination. C) Either A or B is possible. D) Neither A nor B is possible.arrow_forwardWe have two specific strains of E. coli that have shown horizontal gene transfer (HGT) when mixed. To experimentally determine the method of HGT that is happening, the following conditions are set up in different tubes of culture media: A) Donor and recipient strain mixed together (control - no treatment). B) Donor and recipient strains mixed together, DNase added (can digest DNA in solution, not within cells).C) Special tube containing a membrane filter (with pores that allow DNA and viruses to pass through, but not bacterial cells) that separates two compartments. Donor strain is added on one side, the recipient strain on the other (they are separated by the filter).D) Donor and recipient strains mixed together, with chemical that inactivates viruses (chemical affects bacteriophages in solution so they are unable to attach to cells). The results: Tubes A, B, and D: HGT was observed. Tube C: HGT was NOT observed. Based on this, which type of HGT was occurring? Conjugation,…arrow_forwardIt is desired to isolate genomic DNA from liquid culture of S. cerevisiae yeast. A commercial kit will be used to isolate genomic DNA from this liquid culture. Answer the following questions to understand the strategy used by commercial kits for genomic DNA isolation. a) List all the steps from cell pellet preparation to DNA elution. b) With which feature can the membrane in the column that comes with the commercial kit bind DNA? c) Which component in the kit would you use to recover the DNA from the membrane of the column to which the DNA was attached?arrow_forward
- Why is generalized transduction able to transfer anygene, but specialized transduction is restricted to only asmall set?arrow_forwardBacteriophage P22 was used in generalised transduction experiments to infect the Salmonella typhimurium donor strains described in the table below. The resulting phage lysates were then used to infect the recipient strains of S. typhimurium recipient strains listed in the table. In each cross, a phenotype was selected for one of the selected for one of the three genetic markers studied (str, aceA, thrA), and were made to select the recombinants corresponding to the other two markers. markers. The results are given in the following table: Strain I donor str thrA aceA thrA str aceA+ Strain recipient strs thrA+ aceA thrA str aceA Phenotype selected Str Ace+ Str recombinants selected ThrA ThrA ThrA ThrA Ace Ace Number 60 40 95 5 10 90 str: gene involved in streptomycin resistance, aceA: gene involved in the use of acetate as a carbon source, thrA: gene involved in threonine biosynthesis. 1) What are the selective media used in these three transduction experiments? to obtain the selected…arrow_forwardBacteriophage P22 was used in generalized transduction experiments to infect the Salmonella typhimurium donor strains described in the table below. The resulting phage lysates were then used to infect the S. typhimurium recipient strains listed in the table. In each cross, a phenotype was selected for one of the three genetic markers studied (str, aceA, thrA), and then replicates were performed to select the corresponding recombinants for the other two markers. The results are given in the following table: Recipient strain Selected phenotype Selected recombinants Donor strain str thrA aceA+ thrA str aceA+ strs thrA+ aceA thrA+ str aceA Str Ace+ Str ThrA ThrA+ ThrA ThrA+ Ace Ace str: gene involved in streptomycin resistance, aceA gene involved in the use of acetate as a carbon source, thrA: gene involved in the biosynthesis of threonine. Number 60 40 95 5 10 90 Determine the order of the genes and draw a genetic map showing this orderarrow_forward
- According to the double-strand break model, does gene conversionnecessarily involve DNA mismatch repair? Explain.arrow_forwardWhat order should the steps be in for this culture method?arrow_forwardWhat is the difference between genetic horizontal gene transfers: transformation, transduction, conjugation, and transposition?arrow_forward
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