BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 26.5, Problem 1LO
Summary Introduction
To explain: The way through which prion replication and transmission violates the traditional nations of heredity.
Introduction: Prions are proteinaceous infectious particles that lack
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Which of the following is a known characteristic or procesds that can lead to genetic changes in some viruses?
When two different viral strains of the same type of virus infect a single individual, reassortment/mixing of segmented genome pieces can occur, resulting in new combinations of segments.
Genetic rearrangements of the viral genome occurs as a result of duplicate operons in the viral genome undergoing homologous recombination.
Environmental conditions trigger the SOS response in viruses, and leads to generation of errors/mutations in the viral genome.
Viral RNA polymerases display proofreading capability in replicating the viral genome of certain viruses.
Which of the following is a known characteristic that can lead to genetic changes in some viruses?
Operons in the viral genome can undergo homologous recombination, leading to genetic rearrangements.
Reassortment of segmented genomes can occur if a host cell is co-infected with two different viral strains.
RNA polymerases used in replication of the viral genome have proofreading capability.
Environmental conditions can trigger the SOS response, which triggers mutations in the viral genome.
Define transfection.
Chapter 26 Solutions
BIOLOGY
Ch. 26.1 - Prob. 1LOCh. 26.1 - Prob. 2LOCh. 26.2 - Prob. 1LOCh. 26.2 - Prob. 2LOCh. 26.3 - Prob. 1LOCh. 26.3 - Describe how viruses can contribute DNA to their...Ch. 26.4 - Describe the differences between acute and...Ch. 26.4 - Prob. 2LOCh. 26.4 - Prob. 3LOCh. 26.5 - Prob. 1LO
Ch. 26 - Prob. 1UCh. 26 - Prob. 2UCh. 26 - Prob. 3UCh. 26 - Prob. 4UCh. 26 - Why is a drug that blocks HIV binding to one of...Ch. 26 - Prob. 6UCh. 26 - Prob. 7UCh. 26 - Prob. 1ACh. 26 - Prob. 2ACh. 26 - Prob. 3ACh. 26 - Prob. 4ACh. 26 - Prob. 5ACh. 26 - Prob. 6ACh. 26 - Prob. 7ACh. 26 - E. coli lysogens derived from infection by phage ...Ch. 26 - Prob. 2SCh. 26 - Prob. 3SCh. 26 - Prob. 4SCh. 26 - Prob. 5S
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- Explain Packaging recombinant DNAs into retrovirus particles?arrow_forwardSingle strand invasion is promoted by Rad51 protein in Eukaryotes for repair of Double Strand Breaks. * True falsearrow_forwardList three ways in which an unrepaired double-stranded DNA break can be highly dangerous to the cell in which it occurs.arrow_forward
- Targeting vectors use homologoues recombination to insert transgenes at specific chosen locations in the host genome. Discuss this statement.arrow_forwardBriefly, explain specialized transduction and conjugation.arrow_forwardWhich of the following is NOT true about transduction? The bacteriophage's own viral DNA is the source of new genes for bacterial recombination Pieces of donor bacterial DNA can be inserted into the recipient bacterial cell's chromosome None of the other four answers (All are true statements about transduction) O Genetic recombination can result from bacteriophage (phage) virus infection of bacteria During the assembly of new phage particles, pieces of bacterial DNA are sometimes mistakenly inserted into new virus particles instead of phage (viral) DNAarrow_forward
- With respect to the replication strategy, what unusual feature does HBV have in common with HIV?arrow_forwardAll of the following lead to horizontal gene transfer EXCEPT. O plasmids transfer of genetic material from parent to progeny transposable elements viral infection 0000arrow_forwardDraw a hairpin structure like that shown in Figure 18.5 for the repeated sequence found in fragile-X syndrome (see Table 18.1).arrow_forward
- Explain why cures of single gene diseases are deficient.arrow_forwardRemdesivir is an antiviral drug used to treat SARS-CoV-2 infections. It is a broad-spectrum antiviral, meaning it has activity against many different viruses. Remdesivir can be incorporated into a new RNA chain as a virus replicates and can interfere with the viral replication machinery. Template RNA Elongation New RNA SARS-CoV-2 RNA polymerase Template groove Nucleotide entrance Nucleotides Remdesivir Figure 1. A representation of remdesivir and the viral replication machinery for SARS-CoV-2. 6. Figure 1 shows that remdesivir "mimics” an important component of RNA replication. Which specific component of RNA replication has a structure like that of remdesivir? 7. Propose a hypothesis about how remdesivir might inhibit the virus's replication process.arrow_forwardDescribe the differences between genetic complementation and recombination as they relate to the detection of wild-type lysis by a mutant bacteriophage.arrow_forward
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