BIOLOGY
5th Edition
ISBN: 9781265202859
Author: BROOKER
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Chapter 19, Problem 6TY
Summary Introduction
Introduction: There are three modes of transfer of genetic material that takes place in the bacteria. The processes by which the horizontal gene transfer takes place are categorized as transformation, transduction and conjugation. The change in the genetic composition can also be brought about by mutation.
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Genetic 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)
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?
A. Vertical gene transfer from parent to offspring
B. Endosymbiosis with other bacteria
C. Mutation in the bacterial chromosome
D. Horizontal gene transfer from other Bacteria or the environment
Which 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.
Chapter 19 Solutions
BIOLOGY
Ch. 19.1 - Prob. 1CSCh. 19.2 - Prob. 1CSCh. 19.2 - Viral Reproductive Cycles Concept Check: From the...Ch. 19.4 - Genetic Properties of Bacteria Core Skill:...Ch. 19.4 - Prob. 1CCCh. 19.4 - Genetic Properties of Bacteria Concept Check:...Ch. 19.4 - Prob. 3CCCh. 19.5 - Prob. 1CCCh. 19.5 - Prob. 1EQCh. 19.5 - Prob. 2EQ
Ch. 19.5 - Gene Transfer Between Bacteria CoreSKILL The gene...Ch. 19.5 - Prob. 2CCCh. 19.5 - Gene Transfer Between Bacteria Core Skill:...Ch. 19.5 - Gene Transfer Between Bacteria Concept Check: Is...Ch. 19 - Prob. 1TYCh. 19 - The characteristics of viral genomes show many...Ch. 19 - During viral infection, attachment is usually...Ch. 19 - Prob. 4TYCh. 19 - Prob. 5TYCh. 19 - Prob. 6TYCh. 19 - Prob. 7TYCh. 19 - Prob. 8TYCh. 19 - Prob. 9TYCh. 19 - Prob. 10TYCh. 19 - How are viruses similar to living cells, and how...Ch. 19 - Prob. 2CQCh. 19 - Prob. 3CQCh. 19 - Prob. 1COQCh. 19 - Prob. 2COQ
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- For 'transformation' to occur in bacterial cells, certain conditions must be satisfied. Check all the conditions that apply--Select one or more: a.low nutrient availability b.high cell density c.presence of different bacterial species/strains d.low cell density e.presence of antibioticsarrow_forwardWhich of the following is a structure that is not involved in conjugation in bacteria? A. sex pili B. mating bridge C. conjugative pili D. flagellumarrow_forwardA bacterium has received new DNA that allows it to produce a toxin. Which of the following statements is true? A. There is a change in both the genotype and phenotype. B. There is a change in the genotype, not the phenotype. C. There is a change in the phenotype, not the genotype. D. There is no change in either the genotype or the phenotype.arrow_forward
- The primary advantage of conjugation is that ita. is the first step in the formation of a biofilm.b. allows prokaryotes to inject toxins into host cells.c. shuffles genes—including some that enhance survival—among cells.d. provides a mechanism by which bacteria avoid being infected withviruses.arrow_forwardGenetic variation in bacterial populations cannotresult from(A) transduction.(B) conjugation.(C) mutation.(D) meiosis.arrow_forwardThe biological species concept cannot be applied to bacteria because Select one: a. they are single-celled b. they are all pathogens c. they reproduce by binary fission (simple cell division) d. they diearrow_forward
- 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 proteinarrow_forwardWithin prokaryotic organisms, . takes up DNA released by a donor cell that was lysed. is the process of exchanging genetic material that occurs when a host cell Select one: O a. Conjugation O b. Transformation c. Plasmid mediated gene transfer O d. Phage mediated gene transfer O e. Transductionarrow_forwardConjugation involves which of the following: a. transfer of plasmids among bacteria b. sexual reproduction of Eukaryotes c. uptake of free DNA from the environment d. integration of a virus into a chromosomearrow_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_forwardWhich 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 abovearrow_forwardCan you please answer question 33 and 36arrow_forward
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