Which of the following would be the first step in biosynthesis of a virus with a - (minus) strand of RNA? A. Synthesis of double stranded RNA from a DNA template B. Transcription of mRNA from DNA C. Synthesis of DNA from an RNA template D. Synthesis of double stranded RNA from an RNA template E. Synthesis of DNA from a DNA template

Which of the following would be the first step in biosynthesis of a virus with a - (minus) strand of RNA? A. Synthesis of double stranded RNA from a DNA template B. Transcription of mRNA from DNA C. Synthesis of DNA from an RNA template D. Synthesis of double stranded RNA from an RNA template E. Synthesis of DNA from a DNA template

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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If the HIV did not have a reverse transcriptase enzyme, then which of the following would apply? Select one: a. The virus can make use of the reverse transcriptase enzyme from the host cell to convert its RNA into DNA b. Viral particles will be produced without reverse transcriptase enzyme since the original HIV is an RNA virus and needs to assemble RNA ant coat proteins together c. The virus will manufacture its proteins from its RNA using translation and ribosomes from host cell d. Provirus will not be formed and assembly of viral particles will never occur e. The virus will not be able to recognise the host cell and therefore entry into the cell is blocked
The HIV virus produces copies of its genome through: A. DNA replication B. Reverse transcription followed by integration then normal transcription C. RNA replication from an RNA template D. differential splicing
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 proteins
Which of the following enzymes helps the +sense RNA virus Poliovirus to make multiple copies of its genome? A. RNA dependent RNA polymerase B. RNA dependent DNA polymerase C. Reverse transcriptase D. DNA Polymerase I E. DNA dependent RNA polymerase
A virus is isolated, and individual virions appear spherical. What type of virus is this? A. Bacteriophage B. Helical C. Icosahedral D. Lysogenic
Viruses are host-specific, meaning they can only infect specific types of host organisms. For examble, the adenovirus is responsible for the common cold in humans but your dog can't catch a cold from you. Why is this? The proteins on the virus surface can only bind with proteins on the correct host surface. It is an enveloped or non-enveloped virus. The enzymes carried by the virus are compatible with the host. The genome of the virus is made of DNA or RNA.
You are studying a new retrovirus. The viral protein (X) appears to play a role in the export of the viral genomes to the cytoplasm. Protein X brings viral DNA to the cytoplasm and returns back to the nucleus after genome export is complete. Researchers have developed a new drug for the virus. Following treatment with the new drug, the viral protein stays in the nucleus and cannot export the viral genomes. What is the most plausible and logical function of the drug? Use your knowledge of nuclear transport to answer this question. O A. The drug inhibits the binding of the viral protein and the viral genomes to the import receptor. B. The drug inhibits the binding of Ran-GTP to the nuclear export receptor in nucleus. C. The drug promotes the Ran GAP activity. D. The drug blocks the NLS on the viral protein.
A new virus has recently been discovered that infects human lymphocytes. The virus can be grown in the laboratory using cultured lymphocytes as host cells. Design an experiment using a radioactive label that would tell you if the virus contains DNA or RNA genome.
A new virus has recently been discovered that infects human lymphocytes. The virus can be grown in the laboratory using cultured lymphocytes as host cells. Design an experiment using a radioactive label that would tell you if the virus contains DNA or RNA.
A positive-strand RNA virus: a.must first be converted to a mRNA before viralproteins can be translated b.is not recognized by host ribosomes. c.can directly translate viral proteins. d.will be degraded by host enzymes. e.needs RNA dependent RNA polymerase to get converted into mRNA
Imagine that a researcher discovers a new type of virus. This virus contains single‑stranded RNA with "negative" sense. Consider the image. Which statement is true regarding this virus? According to the Baltimore system, this virus would be classified as a type V virus. Based on the presence of single‑stranded RNA, this virus is likely similar to HIV. According to the Baltimore system, this virus would be classified as a type IV virus. This virus must use reverse transcriptase to produce mRNA.
what event occurs in bacteriophage multiplication that does not occur in animal virus replication?A,B,C,D, or E? a. adsorption to the host cells. b. injection of the viral nucleic acid into the host cell. c. host cell synthesis of viral enzymes and capsid proteins. d. assembly of nucleocapsids. e. replication of viral nucleic acid.