Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Question
Chapter 27, Problem 8A
Summary Introduction
Introduction:
SARS coronavirus belongs to class IV that contain plus single stranded RNA as their genetic material. They are enveloped virus that contains lipid particles on their envelope. The SARS causes the severe acute respiratory syndrome in humans.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A researcher, studying two different animal viruses (A and B) that infect the same cell type, digests away all the protein and transfers the nucleic acid directly into the host cell. Only virus B causes the infection. This suggests:
a. Virus A is likely to be a naked virus.
b. Virus A is likely to be an enveloped virus.
c. Virus A is likely to be a -ssRNA virus.
d. Virus A is likely to be a +ssRNA virus.
e. Virus A is likely to be a dsDNA virus.
And now explain why.
Which of the following statements about viruses is false? a. Viruses require a host cell to reproduce. b. Viruses are sensitive to interferons. c. Viral infections can generally be controlled with antibiotics. d. Viruses encode their own genome.
Which of the following statements is not true?
Select one:
a. Viruses multiply inside living cells using viral - mRNA, tRNA & ribosomes.
b. Viruses multiply inside living cells.
c. Viruses contain DNA or RNA.
d. The nucleic acid of a virus is surrounded by a protein coat.
e. Viruses cause the synthesis of specialized infectious elements.
Chapter 27 Solutions
Biology
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...
Knowledge Booster
Similar questions
- 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 mRNAarrow_forwardViruses in the Herpesviridae family are double-stranded DNA enveloped viruses. Specifically the virus Varicella can cause chickenpox, which when in adults is called ___________. This can exist as a ____________ in the DNA of host cells. Select one: a.herpes/ Provirus b.measles/ Provirus c.Shingles / Prophage d.None of the Above e.Shingles / Provirusarrow_forwardViruses code for their own independent protein synthesis. A. True B. Falsearrow_forward
- Why are vaccines and/or passive immunization the method of choice in the treatment or prevention of viral infections? A. There are no known inhibitors to reverse transcription B. Viruses are non-living and do not have their own genetic mechanisms to reproduce by themselves hence host cells must rely on targeting the virus or their products. C. Antibodies prevent replication of viral genome D. Antibodies prevent transcription and translation of viral genomes E. All of thesearrow_forwardViruses are acellular because a. they are biological entities that do not have a cellular structure. b. they are known as virions that obtain their genetic materials from their host c. they are only fragments of non living material. d. None from choices a-carrow_forwardA virus is isolated, and individual virions appear spherical. What type of virus is this? A. Bacteriophage B. Helical C. Icosahedral D. Lysogenicarrow_forward
- Which of the following is a commonality between coxsackievirus A16 infection and a varicella zoster infection?Choose one: A. Both infections are caused by viruses in the herpes family. B. Each disease is usually mild and self-limiting in children but is more severe in adults. C. Both viruses can cause a spotted rash to appear on the palms of the hands and soles of the feet. D. There is a vaccine available for both viruses.arrow_forwardSymptoms of viral infections are caused by: (choose all that apply) A. Actions of the virus that result in cell damage or death B. Actions of the immune system that result in cell damage or death C. Changes in a cell's genetics that result in cancerarrow_forwardViral “spikes” are usually involved in A. Uncoating the virus particle B. Killing the host cell C. Attaching to the host cell to aid in entry or exit D. Replicating DNAarrow_forward
- Which of the following statements seemingly refute the fact that viruses are nonliving? A.They reproduce themselves only inside a host cell. B. They contain no enzymes. C. They can change over time, with the emergence of new strains. D. They cause diseases similar to those caused by bacteria. E. They are composed of protein and nucleic acid.arrow_forwardThe drugs used against HIV in AIDS therapy are not effective against the flu because a. HIV is an RNA virus and influenza is a DNA virus. b. HIV is a DNA virus and influenza is an RNA virus. c. the two viruses have different-sized genomes. d. the proteins targeted by HIV drugs are not found in influenza.arrow_forwardWhich of the following is a reason that scientists do not classify viruses as living things? A. They must infect a host because they cannot reproduce on their own. B. They contain DNA, like all living organisms. C. The experience evolution through natural selection. D. They replicate themselves and reproducearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education