the following are the functions of reverse transcriptase in retroviruses? i) it hydrolyzes the host cell's DNA ii) it uses viral RNA as a template for DNA synthesis iii) it converts host cell RNA into viral DNA iv) it translates viral RNA into proteins v) It uses viral RNA as a template for making complementary RNA strand vi) It degrades RNA from DNA-RNA hybrid Oi, iv and v O ii, iv, v and vi Oii and iii il and vi

the following are the functions of reverse transcriptase in retroviruses? i) it hydrolyzes the host cell's DNA ii) it uses viral RNA as a template for DNA synthesis iii) it converts host cell RNA into viral DNA iv) it translates viral RNA into proteins v) It uses viral RNA as a template for making complementary RNA strand vi) It degrades RNA from DNA-RNA hybrid Oi, iv and v O ii, iv, v and vi Oii and iii il and vi

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter24: Viruses And Subviral Agents

Section: Chapter Questions

Problem 10TYU: Arrange the following list into the correct sequence for part of the cycle of a retrovirus: 1. dsDNA...

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What is the function of reverse transcriptase in retroviruses? a) It converts viral RNA into double-stranded DNA Ob) It uses viral RNA as a template for making complementary RNA strands Oc) It translates viral RNA into proteins d) It uses viral DNA as a template for RNA synthesis
In retroviruses, transcription of the provirus: A) converts viral RNA into viral DNA B) does not result in production of viral protein components C) is done by reverse transcriptase D) represents replication of viral genome/nucleic acid
The genome of which of the following types of animal virus can act directly as MRNA and be utilized by ribosomes without prior processing? O 1) retroviruses O 2) SSDNA viruses 3) -SSRNA viruses O 4) +SSRNA viruses 5) dsDNA viruses
Which of the following models best depicts how the genetic information in a retrovirus is eventually translated into proteins? A) DNA in the retrovirus → RNA in the host cell → Proteins B) RNA in the retrovirus → DNA in the host cell → RNA in the host cell → Proteins C) RNA in the retrovirus → mRNA in the host cell → Proteins D) DNA in the retrovirus → mRNA in the host cell → Proteins
Eukaryotic viruses a.) Can attach to LPS to promote viral entry b.) Can replicate in the host cell nucleus c.) Can inject their genome into the eukaryotic nucleus d.)Do not utilize host ribosomes for protein synthesis e.) Do not utilize host polymerases for genome replication
we can stop the biosynthesis stage of the viral life cycle (not the stages before it) by preventing/inhibiting: A) fusion of the envelope and the plasma membrane B) replication and expression of viral nucleic acid/genome C) the virus's attachment molecules from binding to the host cell receptor D) new copies of viral nucleic acid from combining with newly made viral proteins E)budding
Which of the statements about bacteriophage is FALSE: a) specialized transduction is a low frequency event b) may accidently package host DNA into a phage particle c) may perform specialized transduction d) only have a lytic life cycle
Which of the following are activities that a virus particle (a virion) cannot accomplish by itself? Select all that apply. a) Extract energy from food molecules b) Synthesis of capsid proteins c) Generate ATP d) Binding to a host cell e) Replication of the viral genome
What would happen to a virus that found its way to an environment filled only with cells that were outside of its host range? a) This virus would evolve until it was able to use the surrounding cells as hosts b) This virus would actively transport itself to another area in search of host cells C) This virus would replicate until it found cells that were within its host range d) Nothing; this virus would not be replicated
A particular animal virus requires the use of DNA polymerase from its host, since it does not possess its own DNA polymerase enzyme. Which of the following assumptions in A-D would likely be correct regarding this virus? A) O This virus could not be a retrovirus type. B) OIt could be a (-) ss RNA virus. C) O It could be a (+) ss RNA virus. D) O The vVirus life cycle very likely includes going to the host cell nucleus. E) O All ofA-D are correct assumptions.
Which statement is true of viral replication? A) virus attaches to a specific receptor site on the host-cell membrane. B) Once inside the cell, the viral capsid is degraded, and the viral nucleic acid is released. C) Virus uses the host cell’s machinery to replicate and new virus particles are released. D) All of the above
Which of the following statements regarding retroviruses is FALSE? A) a cellular enzyme converts the RNA genome into DNA B) double-stranded DNA is transcribed into mRNA by cellular enzymes C) retroviral genomes consist of positive-sense RNA D) the virus commonly integrates into the host chromosome as a provirus E) viral RNA enters the nucleus F) ALL of these statements are TRUE