Biology with Connect Access Card
Biology with Connect Access Card
10th Edition
ISBN: 9780077705701
Author: Raven, Peter
Publisher: McGraw-Hill Education
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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.

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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.
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
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