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Viruses

Viruses
The most efficient way to enclose a space is within a/an

cube
icosahedron
helix
sphere

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Viruses
Which of the following are obligate intracellular parasites?

Viruses
All of these
Rickettsia
Chlamydia

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Viruses
The first step in infection of a host bacterial cells by a phage is

replication
penetration
adsorption
absorption

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Viruses
Enzyme neuraminidase is carried by which of the following viruses?

Human immunodeficiency virus
Adenovirus
Epstein-Barr virus
Influenza virus

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Viruses
Reverse transcriptase is a useful enzyme to have when

there are no host cells present
an RNA virus converts its RNA to DNA
spikes are forming in the new virus
nutrients are scarce

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Viruses
The bacterial viruses having head made up of large capsomeres, but no tail is morphologically classified as

A
C
D
B

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