Study Guide And Solutions Manual For Genetic Analysis: An Integrated Approach
3rd Edition
ISBN: 9780134832258
Author: Mark F. Sanders, John L. Bowman, Peter Mirabito
Publisher: PEARSON
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Chapter 6, Problem 24P
The phage P1 is used as a generalized transducing phage in an experiment combining a donor strain of E. coli of genotype leu+phe+ala+ and a recipient strain that is leu-phe-ala-. In separate experiments, transductants are selected for leu+ (experiment A), for phe+ (experiment B), and for ala+ (experiment C). Following selection, transductant genotypes for the unselected markers are identified.
a. What compound or compounds are added to the minimal medium to select for transductants in experiments A, B, and C?
b. Selection experiment results below show the frequency of each genotype.
c. Determine the order of genes on the donor chromosome.
d. Diagram the crossover events that form each of the transductants in experiment A.
e. In experiment B, why are there no transductants with the genotype leu- ala+?
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Chapter 6 Solutions
Study Guide And Solutions Manual For Genetic Analysis: An Integrated Approach
Ch. 6 - For bacteria that are F+, Hfr, F', and F-, perform...Ch. 6 - The flow diagram identifies relationships between...Ch. 6 - Conjugation between an Hfr cell and an F-cell does...Ch. 6 - Bacteria transfer genes by conjugation,...Ch. 6 - Explain the importance of the following features...Ch. 6 - Prob. 6PCh. 6 - Describe what is meant by the term site-specific...Ch. 6 - What is a prophage, and how is a prophage formed?Ch. 6 - How is the frequency of cotransduction related to...Ch. 6 - Describe the differences between genetic...
Ch. 6 - Among the mechanisms of gene transfer in bacteria,...Ch. 6 - What is lateral gene transfer? How might it take...Ch. 6 - Lateral gene transfer is thought to have played a...Ch. 6 - Prob. 14PCh. 6 - A 2013 CDC report identified the practice of...Ch. 6 - Hfr strains that differ in integrated F factor...Ch. 6 - Five Hfr strains from the same bacterial species...Ch. 6 - An interrupted mating study is carried out on Hfr...Ch. 6 - An Hfr strain with the genotype cys+leu+met+strS...Ch. 6 - A triple-auxotrophic strain of E. coli having the...Ch. 6 - Penicillin was first used in the 1940 s to treat...Ch. 6 - An attribute of growth behavior of eight...Ch. 6 - Synthesis of the amino acid histidine is a...Ch. 6 - The phage P1 is used as a generalized transducing...Ch. 6 - Prob. 25PCh. 6 - Prob. 26PCh. 6 - Look closely at the consolidated Hfr map and the...Ch. 6 - Fifty bacterial colonies are on a complete-medium...
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