8. The first step in infection of a host bacterial cells by a phage is
A.adsorption
B.absorption
C.penetration
D.replication

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9. Which of the following viruses has not been associated with human cancer?
A.Hepatitis C virus
B.Hepatitis B virus
C.Varicella-Zoster virus
D.Herpes simplex virus type 2

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10. The viral nucleocapsid is the combination of
A.genome and capsid
B.capsid and spikes
C.envelope and capsid
D.capsomere and genome

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11. Edward Jenner began inoculating humans with material from __________ lesions.
A.Smallpox
B.Avianpox
C.Cowpox
D.Chickenpox

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12. The viruses in an attenuated vaccine
A.have no genome
B.continue to replicate
C.are usually larger than bacteria
D.is altered with chemicals

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13. Enveloped viruses have a __________ shape.
A.icosahedral
B.helical
C.roughly spherical
D.complex

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14. The envelope of which of the following viruses is derived from the host cell nucleus?
A.Paramyxoviruses
B.Retroviruses
C.Orthomyxoviruses
D.Herpesviruses

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