50234330-Biology-8e-Campbell-Chapter-19

50234330-Biology-8e-Campbell-Chapter-19 - Visit for...

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Visit for complete chapters: http://yourtestbanks.webs.com/apps/links/ Biology, 8e (Campbell) Chapter 19 Viruses Multiple-Choice Questions 1) What characteristics of electron microscopes make them most useful for studying viruses? A) high energy electrons with high penetrance B) requirement that specimens be viewed in a vacuum C) necessity for specimens to be dry and fixed D) shorter wavelengths providing higher resolution E) use of magnetic fields to focus electrons Answer: D Topic: Concept 19.1 Skill: Application/Analysis 2) Viral genomes vary greatly in size and may include from four genes to several hundred genes. Which of the following viral features is most apt to correlate with the size of the genome? A) size of the viral capsomeres B) RNA versus DNA genome C) double versus single strand genomes D) size and shape of the capsid E) glycoproteins of the envelope Answer: D Topic: Concept 19.1 Skill: Synthesis/Evaluation 3) Viral envelopes can best be analyzed with which of the following techniques? A) transmission electron microscopy
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50234330-Biology-8e-Campbell-Chapter-19 - Visit for...

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