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Viruses

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

Avianpox
Smallpox
Cowpox
Chickenpox

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Viruses
Virus reproduces in living cells by

duplication
multiplication
replication
all of these

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Viruses
Reverse transcriptase is a useful enzyme to have when

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

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Viruses
The repressor protein, since the cell is resistant to lysis from externally infecting phage, is also called

none of these
immunity operon
operon repressor
immunity repressor

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Viruses
Which of the following viruses belong to family Hepadnaviridae?

Hepatitis B virus
Hepatitis A virus
All of these
Hepatitis D virus

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

helix
icosahedron
sphere
cube

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