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Viruses

Viruses
Enveloped viruses have a __________ shape.

complex
helical
icosahedral
roughly spherical

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Viruses
During the first 10 minutes after injection of phage DNA, no phage can be recovered by disrupting the infected bacterium. This is termed as

rise period
burst size
eclipse period
latent period

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Viruses
A change from lysogeny to lysis is generally induced by

chemicals
all of these
irradiation
ultraviolet light

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Viruses
Edward Jenner began inoculating humans with material from __________ lesions.

Avianpox
Chickenpox
Smallpox
Cowpox

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Viruses
Which of the following is an example of rod-shaped viruses having their capsomeres arranged helically and not in the stacked ring?

Bateriophage T4
Bateriophage MV-L2
Bateriophage T2
Bateriophage M13

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Viruses
Virus reproduces in living cells by

multiplication
all of these
duplication
replication

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