18. Viruses, Viroids, & Prions

Introduction to Animal Virus Infections

Multiple Choice
The projections on the surface of animal viruses primarily allow the virus to —
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Multiple Choice
In animal virology, the host range (tropism) of a virus is primarily determined by which factor?
Textbook Question
Identify the viral family that infects skin, mucosa, and nerve cells; causes infections that can recur because of latency; and has polyhedral geometry.
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Multiple Choice
Which of the following is a key difference between the multiplication cycle of animal viruses and bacteriophages?
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Textbook Question
Consider the viruses you studied in this chapter. Which three would you rank as the deadliest?
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Multiple Choice
Viruses acquire envelopes around their nucleocapsids during which stage of the viral replication cycle?
Multiple Choice
Why must animal viruses enter host cells to replicate?
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Multiple Choice
What is the first step of a virus's life cycle when infecting an animal cell?
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Multiple Choice
Which process typically occurs when animal viruses enter host cells?
Textbook Question
Why are humans considered “dead-end” hosts for many arboviruses?
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Textbook Question
Why is AIDS more accurately termed a “syndrome” instead of a “disease”?
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Multiple Choice
The ____________ step in the process of animal virus infections involves releasing the viral DNA from its surrounding protein coat into the host cell's cytoplasm.
Multiple Choice
Which of the following is a method used by animal viruses to gain entry into host cells?
Multiple Choice
Animal viruses are divided into a number of families whose names typically end in which suffix?
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Multiple Choice
Which bloodborne pathogen is known for progressively destroying the host's immune system by targeting CD4+ T helper cells?