Concepts of Genetics (12th Edition)
12th Edition
ISBN: 9780134604718
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino, Darrell Killian
Publisher: PEARSON
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Chapter 6, Problem 6PDQ
In general, when recombination experiments are conducted with bacteria, participating bacteria are mixed in complete medium, then transferred to a minimal growth medium. Why isn’t the protocol reversed: minimal medium first, complete medium second?
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Chapter 6 Solutions
Concepts of Genetics (12th Edition)
Ch. 6 - When the interrupted mating technique was used...Ch. 6 - In a transformation experiment involving a...Ch. 6 - In complementation studies of the rII locus of...Ch. 6 - A 4-month-old infant had been running a moderate...Ch. 6 - Prob. 2CSCh. 6 - Prob. 3CSCh. 6 - Prob. 4CSCh. 6 - HOW DO WE KNOW? In this chapter, we have focused...Ch. 6 - Review the Chapter Concepts list on p. 123. Many...Ch. 6 - With respect to F+ and F bacterial matings, answer...
Ch. 6 - List all major differences between (a) the F+ F...Ch. 6 - Describe the basis for chromosome mapping in the...Ch. 6 - In general, when recombination experiments are...Ch. 6 - Why are the recombinants produced from an Hfr F...Ch. 6 - Describe the origin of F bacteria and merozygotes.Ch. 6 - In a transformation experiment, donor DNA was...Ch. 6 - Describe the role of heteroduplex formation during...Ch. 6 - Explain the observations that led Zinder and...Ch. 6 - Prob. 12PDQCh. 6 - Two theoretical genetic strains of a virus (abc...Ch. 6 - The bacteriophage genome consists of many genes...Ch. 6 - If a single bacteriophage infects one E. coli cell...Ch. 6 - A phage-infected bacterial culture was subjected...Ch. 6 - In recombination studies of the rII locus in phage...Ch. 6 - In an analysis of rII mutants, complementation...Ch. 6 - If further testing of the mutations in Problem 18...Ch. 6 - Using mutants 2 and 3 from Problem 19, following...Ch. 6 - During the analysis of seven rII mutations in...Ch. 6 - In studies of recombination between mutants 1 and...Ch. 6 - Prob. 23ESPCh. 6 - An Hfr strain is used to map three genes in an...Ch. 6 - A plaque assay is performed beginning with 1 mL of...Ch. 6 - In a cotransformation experiment, using various...Ch. 6 - For the experiment in Problem 26, another gene, g,...Ch. 6 - Bacterial conjugation, mediated mainly by...Ch. 6 - A study was conducted in an attempt to determine...
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- The following image is of an agarose gel. If DNA samples were loaded to this gel and the electrophoresis experiment was started, explain what would happen and why.arrow_forwardIn the bacterial transformation experiment, what is the primary purpose of using an ampicillin-containing medium? LB agar is __________.arrow_forwardIn Colony Polymerase Chain Rxn (PCR), what primers are necessary to identify that the transformants contain the gene of interest with the correct orientation?arrow_forward
- If a concentrated sample is out of the detection range of a chosen dye-based assay, what can be done?arrow_forwardWould you expect transfer of chromosomal DNA by conjugation to be more efficient if cells were plated together on solid medium (agar) or mixed together in a liquid in a shaking flask? Explain.arrow_forwardWhat advantages does fluorescent labeling offer over radioactive methods of labeling DNA?arrow_forward
- Why is it possible to visualize a PCR product on an agarose gel even if the template genome is present at such a low concentration that it cannot be seen?arrow_forwardThe cath sample was both filtered to remove all bacteria, and then treated with DNase. Based on what you know about the cath sample contents, how did the bacteria exposed to this treated sample still become antibiotic resistant?arrow_forwardExplain The replica plating technique?arrow_forward
- At what stage of the culture should bacterial colonies be harvested for plasmid DNA extraction? How about for genomic DNA extraction? What distinguishes the xanthogenate-based methodology from the traditional phenol/chloroform method for isolating DNA from bacteria? What makes potassium ethyl xanthogenate efficient in isolating DNA from a variety of microorganisms?arrow_forwardExplain how you would use the blue-white colony screening technique to identify bacteria containing the recombinant plasmidarrow_forwardThe presence of colonies on the bacterial plate post transformation suggests which of the following? Group of answer choices The colonies contain the transformed plasmid and are not resistant to the antibiotic The colonies contain the transformed plasmid and are resistant to the antibiotic The colonies do not contain the transformed plasmid and are not resistant to the antibiotic The colonies do not contain the transformed plasmid and are resistant to the antibioticarrow_forward
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genetic recombination strategies of bacteria CONJUGATION, TRANSDUCTION AND TRANSFORMATION; Author: Scientist Cindy;https://www.youtube.com/watch?v=_Va8FZJEl9A;License: Standard youtube license