Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 7.6, Problem 1COMQ
Which of the following is an example of horizontal gene transfer?
a. The transfer of a gene from one strain of E. coli to a different strain via conjugation
b. The transfer of a gene from one strain of E. coli to a different strain via transduction
c. The transfer of an antibiotic resistance gene from E. coli to Salmonella typhimurium via transformation
d. All of the above are examples of horizontal gene transfer.
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Imagine you go to the doctor because you are sick. You get antibiotics, but you hurry out of the hospital as fast as you can so you don’t pick up any antibiotic resistance genes as well. If genes were transferred directly from the environment, you could pick up a resistance gene by breathing the air. What type of gene transfer allows cells to pick up genes directly from the environment?
a. Transformation
b. Transduction
c. Conjugation
d. All of the above
A form of genetic transfer that involves the uptake of a fragment of DNA from the environment is calleda. conjugation.b. transduction.c. transformation.d. all of the above.
A transducing particle injects all of the DNA that it contains into a bacterial cell. Which of the following are TRUE? A. The bacterium becomes Hfr B. The bacterium becomes F+ C. The bacterium immediately acquires new functions as the injected DNA is rapidly transcribed and translated into mRNA and proteins D. This injected DNA can integrate into the bacterium’s genome through a process called recombination
Chapter 7 Solutions
Genetics: Analysis and Principles
Ch. 7.1 - 1. A form of genetic transfer that involves the...Ch. 7.2 - 1. A bacterial cell with an F factor conjugates...Ch. 7.2 - 2. Which of the following is a type of plasmid?...Ch. 7.3 - 1. With regard to conjugation, a key difference...Ch. 7.3 - 2. In mapping experiments, ______ strains are...Ch. 7.4 - Prob. 1COMQCh. 7.4 - Cotransduction may be used to map bacterial genes...Ch. 7.5 - Prob. 1COMQCh. 7.5 - Prob. 2COMQCh. 7.6 - 1. Which of the following is an example of...
Ch. 7 - 1. The terms conjugation, transduction, and...Ch. 7 - Prob. 2CONQCh. 7 - If you mix together an equal number of F+ and F...Ch. 7 - What is the difference between an F+ and an Hfr...Ch. 7 - 5. What is the role of the origin of transfer...Ch. 7 - 6. What is the role of sex pili during...Ch. 7 - Prob. 7CONQCh. 7 - Prob. 8CONQCh. 7 - Prob. 9CONQCh. 7 - 10. What is cotransduction? What determines the...Ch. 7 - Prob. 11CONQCh. 7 - Prob. 12CONQCh. 7 - Describe the steps that occur during bacterial...Ch. 7 - Prob. 14CONQCh. 7 - Prob. 15CONQCh. 7 - Antibiotics such as tetracycline, streptomycin,...Ch. 7 - Prob. 1EQCh. 7 - 2. In the experiment of Figure 7.1, Lederberg and...Ch. 7 - Explain how a U-tube apparatus can distinguish...Ch. 7 - Prob. 4EQCh. 7 - 5. In a conjugation experiment, what is meant by...Ch. 7 - In your laboratory, you have an F strain of E....Ch. 7 - 7. As mentioned in question 2 of More Genetic...Ch. 7 - An Hfr strain that is hisE+ and pheA+ was mixed...Ch. 7 - Acridine orange is a chemical that inhibits the...Ch. 7 - Prob. 10EQCh. 7 - Prob. 11EQCh. 7 - Lets suppose a new strain of P1 phage has been...Ch. 7 - If two bacterial genes are 0.6 minute apart on the...Ch. 7 - 14. In a cotransduction experiment involving P1,...Ch. 7 - Prob. 15EQCh. 7 - Prob. 16EQCh. 7 - 1. Discuss the advantages of the genetic analysis...Ch. 7 - Prob. 2QSDC
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- How do scientists induce prokaryotes to produce human proteins?a. They insert human genes into bacterial genomes.b. They cross bacterial strains until the proteins arise at random.c. They inject bacteria into human muscles.d. All of the above are correct.arrow_forwardWhich of the following statements correctly describes a process by which bacteria become resistant to antibiotics? A. bacteria reproduce slowly, allowing mutation to become widespread in a population. B. some bacteria produce exotoxins that breakdown antibiotics, rendering them nonfunctional C. conjugation spreads antibiotic resistance genes rapidly in a population D. antibiotics cause mutation in bacteria, making them resistant.arrow_forwardBacterial transformation is a major concern in many medical settings. Why might health care providers be concerned? a. Pathogenic bacteria could introduce diseasecausing genes in non-pathogenic bacteria. b. Antibiotic resistance genes could be introduced to new bacteria to create “superbugs.” c. Bacteriophages could spread DNA encoding toxins to new bacteria. d. All of the above.arrow_forward
- Particles that transfer genetic material from one species to another, especially in marine prokaryotes: a. horizontal gene transfer b. lateral gene transfer c. genome fusion device d. gene transfer agentsarrow_forwardBacteria can acquire DNA directly from the environment through: please explain the answer a.Conjugation b.Transduction c.Natural transformation d.All of the abovearrow_forwardWhich of the following is an example of horizontal genetransfer?a. The transfer of a gene from one strain of E. coli to a differentstrain via conjugationb. The transfer of a gene from one strain of E. coli to a differentstrain via transductionc. The transfer of an antibiotic resistance gene from E. coli toSalmonella typhimurium via transformationd. All of the above are examples of horizontal gene transfer.arrow_forward
- Which of the following best describes the mechanism of action of the antibiotic streptomycin? A. it disrupts protein synthesis in resistant bacteria. B. Streptomycin inhibits cell wall synthesis in all bacterial species. C. Streptomycin creates mutations in bacteria which cause them to become resistant. D. It disrupts protein synthesis in nonresistant bacteria.arrow_forwardWhich process of DNA transfer in bacteria requires a virus? a. Conjugation b. Transduction c. Transformation d. All of the abovearrow_forwardWhich genes can be transferred by all three methods of horizontal gene transfer? a. capsule production b. toxin production c. F factord. drug resistancearrow_forward
- Part A: Antibiotic resistance is a major health concern. Resistance to various antibiotics can be transferred by a. all options. b. transduction. c. conjugation. d. transformation. Part B: Movement of genetic information through transduction requires that a. free DNA is available in the environment. b. physical contact occurs between cells. c. transposable elements occur in a chromosome. d. viruses have infected a cell.arrow_forwardAn example of bioremediation is A) the use of prokaryotes to treat sewage or clean up oil spills. B) the production of antibiotics by cultured prokaryotes. C) the application of bacteria to produce transgenic plants.arrow_forwardwhy do the bacteria grow up to the edge of the area with antibiotics, pause, then continue to grow across the area with antibiotics? A) The antibiotics caused mutations in the DNA of the bacteria, making them resistant to the antibiotics. B) The bacteria mutated as a survival response to the presence of antibiotics, enabling the bacteria to become resistant to the antibiotics. C)A few bacteria experienced random mutations in their DNA, which allowed some of them to grow even though antibiotics were present. D) Researchers added antibiotic resistant bacteria to the culture, so that the bacteria would continue to grow across the area with antibiotics.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