Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
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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Explain the importance of the following features in conjugating donor bacteria:
a. the origin of transfer
b. the conjugation pilus
c. homologous recombination
d. the relaxosome
e. relaxase
f. T strand DNA
g. pillin protein
Which of the following is an example of horizontal gene transfer?
a. the transmission of an eye color gene from father to daughter
b. the transmission of a mutant gene causing cystic fibrosis from father to daughter
c. the transmission of a gene conferring pathogenicity (the ability to cause disease) from one bacterial species to another
d. the transmission of a gene conferring antibiotic resistance from a mother cell to its two daughter cells
e. all of the above
e. coli is commonly found in the human Microbiome. while most strains are harmless some can cause various illnesses ranging from urinary track infections to severe gastroenteritis. which of the following is a primary mechanism by which e. coli obtains its pathogenicity?
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B. Endosymbiosis with other bacteria
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D. Horizontal gene transfer from other Bacteria or the environment
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which 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_forwardA 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 recombinationarrow_forwardGenetic information can be transferred horizontally from one bacterial cell to another cell of the "same generation" (versus daughter cells), leading to genetic recombination, by all of the following EXCEPT: A. Gene expression (transcription/translation/protein synthesis) B. Transformation C. Conjugation D. Transduction E. None of the other four answers (all are mechanisms of “horizontal transfer” genetic recombination)arrow_forward
- Define the following terms:a. transpositionb. transposable elementc. bacterial transformationd. transductione. conjugationarrow_forwardA hypothetical gene for cephalosporin resistance is found to be carried by a transposon. Explain what a transposon is. Then explain how the cephalosporin resistance could be horizontally transferred between organisms by transformation, conjugation, and transduction. What steps/events would have to occur to allow the transposon to be transferred by each method. Also, explain how it could be transferred vertically between organisms.arrow_forwardAntibiotic resistant genes can be located on plasmids in bacterial cells. Considering what you know about horizontal gene transfer, explain why this is a concern.arrow_forward
- Explain the difference between gene modification and gene addition.Are the following examples of gene modification or gene addition?A. A mouse model to study cystic fibrosisB. Introduction of a pesticide-resistance gene into corn using theT-DNA vector of A. tumefaciensarrow_forwardIn Hershey and Chase’s experiment investigating which biological molecule carries genetic information, they found that phage DNA with radiolabeled phosphorus was retained in bacterial cells after transduction. To conclude that DNA is the genetic material, what assumption did they have to make? (photo linked) A. Protein does not enter the bacterium during transduction. B. DNA does not stay in the media after transduction. C. All of the phage DNA was radiolabeled. D. Bacteria can be transduced by phage.arrow_forwardWhich 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_forward
- A strain of Neisseria gonorrheae has recently acquired the ability to be resistant to the antibiotic penicillin. Evidence indicates that this is not a new mutation but rather a gene received from another bacterium. After the new genetic information recombines with the genome, how would gonorrheae use the DNA to resist the action of penicillin? The gene would be transcribed into RNA and then translated into protein. The gene would translated into protein and then transcribed into RNA. The gene would be recognized as a mutation and repaired. The gene would be released from the N. gonorrheae as naked DNA.arrow_forwardDefine the following terms: a. nonreplicative transposition b. transposable element c. bacterial transformation d. transduction e. conjugationarrow_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
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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