Biology (Raven), 9th Edition

Chapter 27: Viruses

Pre-Test

1
Viruses are considered
A)nonliving, they are either active or inactive.
B)primitive precursors of bacteria.
C)a link between life and nonlife.
D)primitive organisms.
E)very small bacteria.
2
The suitable cells for the rabies virus to replicate in are
A)connective tissue.
B)skin cells.
C)neurons.
D)liver cells.
E)respiratory cells.
3
The HIV viral genome is composed of
A)double-stranded DNA.
B)positive single-stranded RNA.
C)single-stranded DNA.
D)negative single-stranded RNA.
E)both RNA and DNA.
4
Shingles is caused by which of the following viruses?
A)Variola virus
B)Varicella zoster
C)Herpes simplex virus
D)Flavivirus
E)Coronavirus
5
Which of the following statements about influenza is NOT true?
A)The flu is caused by the influenza virus.
B)One of the most lethal viruses in human history is type I influenza virus.
C)Influenza can also infect other mammals and birds.
D)Genes in influenza viruses undergo recombination frequently, so they are not recognized by antibodies against past infections.
E)Each year the composition of flu vaccines must be changed.
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