Genetic Analysis: An Integrated Approach (3rd Edition)
3rd Edition
ISBN: 9780134605173
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 13P
Lateral gene transfer is thought to have played a major role in the evolution of bacterial genomes. Describe the impact of LGT on bacterial genome evolution.
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Based on the images attached, what does the similarity in the sequences tell you about the ermB gene found in these bacteria? Would we expect high or low sequence similarity when considering the possibility of horizontal gene transfer?
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Chapter 6 Solutions
Genetic Analysis: An Integrated Approach (3rd Edition)
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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- horizontal gene transfer Explain why the rapid acquisition of antibiotic resistance by bacterial pathogens is associated with growth in biofilms or growth in the presence of bacteriophages.arrow_forwardhorizontal gene transfer Explain how transposable elements facilitate the transfer of genetic information.arrow_forwardWhich of the following is termed as conserved gene order? a) Microarray b) Ortholog c) Synteny d) Paralogarrow_forward
- In 1995, Hamilton Smith, Craig Venter and co-workers published the first complete genome sequence of a self-sustaining organism, that of the bacterium Haemophilus influenzae. Analysis of the genome sequence revealed that the organism does not have a gene that could encode a telomerase enzyme. What is the potential evolutionary consequence of this? Explain your answer.arrow_forwardDescribe the impact of lateral gene transfer on bacterial genome evolution.arrow_forwardAssume that there are horizontal gene transfers between two completely different bacterial species. In one case it is a plasmid that is transmitted via conjugation, in the other case it is it is a part of the bacterial chromosome that is transferred via transformation. In which of the two cases is it likely that the transferred DNA will be present? left and can function in the recipient cells? Explain the biological background to your answerarrow_forward
- Genetic transfer via transformation can also be used to map genes along the bacterial chromosome. In this approach, fragments of chromosomal DNA are isolated from one bacterial strain and used to transform another strain. The experimenter examines the transformed bacteria to see if they have incorporated two or more different genes. For example, the DNA may be isolated from a donor E. coli bacterium that has functional copies of the araB and leuD genes. Let’s call these genes araB+ and leuD+ to indicate the genes are functional. These two genes are required for arabinose metabolismand leucine synthesis, respectively. To map the distance betweenthese two genes via transformation, a recipient bacterium is used that is araB− and leuD−. Following transformation, the recipient bacterium may become araB+ and leuD+. This phenomenon is calledcotransformation because two genes from the donor bacterium have been transferred to the recipient via transformation. In this type of experiment, the…arrow_forwardGenetic transfer via transformation can also be used to map genes along the bacterial chromosome. In this approach, fragments of chromosomal DNA are isolated from one bacterial strain and used to transform another strain. The experimenter examines the transformed bacteria to see if they have incorporated two or more different genes. For example, the DNA may be isolated from a donor E. coli bacterium that has functional copies of the araB and leuD genes. Let’s call these genes araB+ and leuD+ to indicate the genes are functional. These two genes are required for arabinose metabolismand leucine synthesis, respectively. To map the distance betweenthese two genes via transformation, a recipient bacterium is used that is araB− and leuD−. Following transformation, the recipient bacterium may become araB+ and leuD+. This phenomenon is calledcotransformation because two genes from the donor bacterium have been transferred to the recipient via transformation. In this type of experiment, the…arrow_forwardGenetic transfer via transformation can also be used to map genes along the bacterial chromosome. In this approach, fragments of chromosomal DNA are isolated from one bacterial strain and used to transform another strain. The experimenter examines the transformed bacteria to see if they have incorporated two or more different genes. For example, the DNA may be isolated from a donor E. coli bacterium that has functional copies of the araB and leuD genes. Let’s call these genes araB+ and leuD+ to indicate the genes are functional. These two genes are required for arabinose metabolismand leucine synthesis, respectively. To map the distance betweenthese two genes via transformation, a recipient bacterium is used that is araB− and leuD−. Following transformation, the recipient bacterium may become araB+ and leuD+. This phenomenon is calledcotransformation because two genes from the donor bacterium have been transferred to the recipient via transformation. In this type of experiment, the…arrow_forward
- What is an open-reading frame? a) An unknown gene b) The protein-encoding sequence of a gene O c) A gene that no longer has a function d) A non-translated region on the chromosomearrow_forwardIn a transformation experiment involving a wild type bacterial strain with a recipient strain with mutations in genes f, g, h and i pairs of genes were analyzed for co-transformation with the following results: Gene Pair Co-transformation g+ i+ f+ i+ yes no f+ h+ Уes f+ g+ no g+ h+ h+ i+ no уes What is the linear order of these genes relative to cach other?arrow_forwardWhat classification would TP53 gene belong belong too and why?arrow_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