Viruses Answers

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Many biologists debate how a virus should be classified. In 2008, scientists in France discovered that a virus was capable of infecting another virus. Which theory might be supported by this information?

A
a virus is living
B
a virus is nonliving
C
a virus uses sexual reproduction
D
a virus makes its own proteins
2
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Which occurs in both the lytic cycle and the lysogenic cycle?

A
destruction of host cell
B
integration of viral and host genetic information
C
production of virus particles
D
hijacking of host cell's metabolism
3

Which virus has a structure that includes an outer lipid bilayer that is studded with proteins?

A
papilloma virus
B
rabies virus
C
influenza virus
D
bacteriophage virus
5

Which is included in a lysogenic cycle?

A
early lysis of the host cell
B
the production and assembly of viral particles
C
the appearance of viral infection symptoms
D
a period of genetic integration
6

Which component of a virus is injected into a cell?

A
ribosome
B
nucleic acid
C
protein capsid
D
mitochondrion
7

Which argument supports the idea that viruses are alive?

A
Viruses have a cell membrane.
B
Viruses contain unique genetic information.
C
Viruses replicate in a host.
D
Viruses do not produce proteins.
8

What usually happens to the host’s DNA during the lytic cycle?

A
It is destroyed.
B
It is integrated with the viral DNA.
C
It becomes a provirus.
D
It is deactivated.
9

Which structure is labeled X in the diagram below?

Question illustration
A
ribosome
B
lipid envelope
C
protein tail
D
capsid protein
10

Which is a basic characteristic of all living cells?

A
cell wall
B
protein coat
C
energy metabolism
D
antibiotic resistance

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Viruses Answers — AHS Biology CR Prescriptive