Campbell Biology: Custom Edition
18th Edition
ISBN: 9781323717271
Author: Urry, Cain, Wasserman, Minorsky, Reece
Publisher: PEARSON C
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Chapter 27.2, Problem 2CC
Distinguish between the three mechanisms by which bac- teria can transfer DNA from one bacterial cell to another.
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Describe the mechanisms of horizontal gene transfer in bacteria, describing the manner in which the DNA can be transferred from one cell to another.Choose a disease or an organism that has a well-documented mechanism of resistance (such as methicillin resistant Staphylococcus aureus - MRSA or tuberculosis) and identify the gene or genes that confer resistance and the method of DNA transfer thought to contribute to its spread. This may be from one organism to another or may simply be passed down from mother to daughter cell due to environmental pressure.
Describe the three different methods of horizontal gene transfer among bacteria and mention their significance. Be specific when discussing the donor versus recipient cell, and if the donor and recipient cells are still alive after each horizontal gene transfer event is complete.
Please be detailed.
Briefly describe three different mechanisms for bacterial gene transfer
Chapter 27 Solutions
Campbell Biology: Custom Edition
Ch. 27.1 - Describe two adaptations that enable prokaryotes...Ch. 27.1 - Contrast the cellular and DNA structures of...Ch. 27.1 - Prob. 3CCCh. 27.2 - Although rare on a per gene basis, new mutations...Ch. 27.2 - Distinguish between the three mechanisms by which...Ch. 27.2 - In a rapidly changing environment, which bacterial...Ch. 27.2 - WHAT IF? If a nonpathogenic bacterium were to...Ch. 27.3 - Distinguish between the four major modes of...Ch. 27.3 - A bacterium requires only the amino acid...Ch. 27.3 - WHAT IF? Describe what you might eat for a...
Ch. 27.4 - Explain how molecular systematics and metagenomics...Ch. 27.4 - WHAT IF What would the discovery of a bacterial...Ch. 27.5 - Explain how prokaryotes, though small, can be...Ch. 27.5 - MAKE CONNECTIONS Review Figure 10.6. Then...Ch. 27.6 - Identify at least two ways that prokaryotes have...Ch. 27.6 - Prob. 2CCCh. 27.6 - Prob. 3CCCh. 27 - Describe features of prokaryotes that enable them...Ch. 27 - Mutations are rare and prokaryotes reproduce...Ch. 27 - Describe the range of prokaryotic metabolic...Ch. 27 - How have molecular data informed prokaryotic...Ch. 27 - In what ways are prokaryotes key to the survivaI...Ch. 27 - Prob. 27.6CRCh. 27 - Genetic variation in bacterial populations cannot...Ch. 27 - Photoautotrophs use (A) light as an energy source...Ch. 27 - Which of the following statements is not true? (A)...Ch. 27 - Prob. 4TYUCh. 27 - Prob. 5TYUCh. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - SCIENTIFIC INQUIRY INTERPRET THE DATA The...Ch. 27 - WRITE ABOUT A THEME: ENERGY In a short essay...Ch. 27 - SYNTHESIZE YOUR KNOWLEDGE Explain how the small...
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- Briefly describe different mechanisms of bacterial gene transfer.arrow_forwardDescribe how an Hfr strain can transfer portions of the bacterial chromosome to recipient cells?arrow_forwardWith respect to F+ and F- bacterial matings, answer the following questions: (a) How was it established that physical contact between cells was necessary? (b) How was it established that chromosome transfer was unidirectional? (c) What is the genetic basis for a bacterium’s being F+?arrow_forward
- Which bacterial genetic transfer process does not require recombinationwith the bacterial chromosome?arrow_forwardexplain three methods of genetic transfer in bacteria?arrow_forwardThe terms conjugation, transduction, and transformation are usedto describe three different natural forms of genetic transferbetween bacterial cells. Briefly discuss the similarities and differencesamong these processes?arrow_forward
- Describe the 3 ways in which bacteria can transfer genetic material to each other via horizontal gene transfer. Be sure to explain the following: How is DNA transferred between bacteria, is there direct contact between bacteria and whether a plasmid is involved or not.arrow_forwardGeneral recombination occurs in bacteria where it is involved in several types of intermicrobial DNA transfer. What are these types of transfer, and by what mechanisms do they occur?arrow_forwardIdentify the most mistaken (wrong) choice: a) Transcription machinery and an enhancer can bind to the chromosome at the same time. b) Organic matters may interfere with heat treatment of bacterial growth control. ( c) Nitrocellulose can be used to filter out microorganisms from a liquid solution. d) Time to kill a bacterial culture is not proportional to the number of microbes in the culturearrow_forward
- We 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_forwardBacterial conjugation has medical consequences. For example, certain plasmids contain genes that code for toxins. The causative agent of a deadly form of food poisoning, E. coli 0157, synthesizes a toxin that causes massive bloody diarrhea and kidney failure. This toxin is now believed to have originated in Shigella, another bacterium that causes dysentery. Similarly, the growing problem of antibiotic resistance is partly attributable to the spread of antibioticresistant genes among bacterial populations. Antibiotic resistance develops because antibiotics are overused in medical practice and in livestock feeds. Suggest a mechanism by which this extensive use promotes antibiotic resistance.arrow_forwardDefine, diagram & compare the 3 mechanisms of Horizontal Gene Transfer in prokaryotes. In each case, what must happen for the exchanged DNA to be stably inherited?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