BIOLOGY VOL. II
16th Edition
ISBN: 9781308795317
Author: Raven
Publisher: Mcgraw-Hill/Create
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Textbook Question
Chapter 27, Problem 5A
Phage conversion in which viruses add genes to a bacterial cell can be considered to be a form of
a. standard inheritance.
b. horizontal gene transfer.
c. vertical gene transfer.
d.
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Students have asked these similar questions
Some strains of Escherichia coli bacteria have acquired the ability to produce the harmful Shiga toxin, normally produced by Shigella dysenteriae. Which statements best explain why this occurs? Mark all that apply.
A. conjugation between two different species of bacteria allowed both strains of bacteria to express a virulence factor
B. transformation resulted in expression of a virulence factor
C. horizontal gene transfer between different species of bacteria
D. transduction of a specific gene resulted in expression of new traits
The contents of a plaque may not always contain a clonal population of phage if:
a. Identical phages from a neighboring plaque diffuse into the original plaque
b. The bacteria run out of resources too quickly and limit phage growth
c. Different phages from a neighboring plaque diffuse into the original plaque
d. All plaques on the plate originated from a pure phage culture
Define the following terms: a. negative sense RNA virus b. vDNA c. proviral DNA d. macropinocytosis e. temperate phage
Chapter 27 Solutions
BIOLOGY VOL. II
Ch. 27 - The reverse transcriptase enzyme is active in...Ch. 27 - Which of the following is NOT part of a virus? a....Ch. 27 - Which of the following is common in animal viruses...Ch. 27 - Which of the following would NOT be part of the...Ch. 27 - A process by which a virus may change a benign...Ch. 27 - Prob. 6UCh. 27 - Prob. 7UCh. 27 - Prob. 1ACh. 27 - The idea of a protein that was an infectious agent...Ch. 27 - Bacterial viruses and animal viruses are similar...
Ch. 27 - Prob. 4ACh. 27 - Phage conversion in which viruses add genes to a...Ch. 27 - According to the prion hypothesis, the infectious...Ch. 27 - Prob. 7ACh. 27 - Prob. 8ACh. 27 - E. coli lysogens derived from infection by phage ...Ch. 27 - Most biologists believe that viruses evolved...Ch. 27 - Prob. 3SCh. 27 - What do we mean by the term emerging virus? How is...Ch. 27 - How might phage be used to transfer E. coli genes...
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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 proteinarrow_forwardThe likelihood of co-transformation of two bacterial genes increases: a. As their distance apart on the chromosome increases b. As their distance apart on the chromosome decreases c. As the transducing phage enter the lytic cycle d. As recombination rate decreases e. None of these is correcarrow_forwardGeneralized transduction can transfer: please explain the answer a.any DNA from the host genome b.only phage-specific DNA sequences c.genes flanked by insertion elements d.only genes near the site of integrationarrow_forward
- During transduction via phage P1,a. any small fragment of the bacterial chromosome may betransferred to another bacterium by a phage.b. only a specific fragment of DNA may be transferred to anotherbacterium by a phage.c. any small fragment of the bacterial chromosome may betransferred during conjugation.d. only a specific fragment of DNA may be transferred duringconjugation.arrow_forwardWhich genes can be transferred by all three methods of horizontal gene transfer? a. capsule production b. toxin production c. F factord. drug resistancearrow_forwardIn the Hershey and Chase experiment involving T2 phage,a. most of the 32P entered the bacterial cells whereas most of the 35S did not.b. most of the 35S entered the bacterial cells whereas most of the 32P did not.c. equal amounts of 32P and 35S entered the bacterial cells.d. none of the above was observed.arrow_forward
- In 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_forwardPhage M13 has often been used for Select one: O a. Specialized transduction b. generalized transduction O c. phage display d. conjugationarrow_forwardIn the 1953 study by Hershey and Chase A. 32P was found in supernatants after T2 infection B. 35S was found in bacterial pellets after T2 infection C. E. coli genomes were inherited after T2 infection D. RNA was excluded as THE heritable material E. T2 coats were removed with a blender after initial phage bindingarrow_forward
- Which of the following statements are correct for DNA viruses? Mark all that apply. A.The genome consists of dsRNA B. A provirus stage occurs during viral replication C. The genome consists of two identical strands of DNA D. Replication requires reverse transcriptase Replication requires DNA polymerase E.The viral DNA must enter the nucleus for its replication F. Uncoating must occur for the virus to be replicated G.The viral genome acts as a template for production of viral proteinsarrow_forwardWhich of the following statements are correct for RNA viruses? Mark all that apply. A.Replication requires reverse transcriptase B. Uncoating must occur for the virus to be replicated C.The genome consists of two identical strands of ssRNA D.Replication requires RNA dependent RNA polymerase E. The viral DNA acts as a template for production of viral proteins F.Protease enzyme is required for biosynthesis and maturation of virions G. A provirus stage occurs during viral replicationarrow_forwardDuring the late stage T4 phage infection, the phage DNA is synthesized by Select one: а. the DNA polymerase encoded by T4 genome. the ADP-ribosylated DNA polymerase encoded by E. coli genome. O c. the ADP-ribosylated DNA polymerase encoded by T4 genome. d. the DNA polymerase encoded by E. coli genome.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