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Question
A cell that allows the complete replication cycle of a virus to take place is said to be aA) permissive host.
B) viral cell.
C) dead cell.
D) lytic cell.
Answer
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Which of the following statements about chlamydial infections is TRUE?
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B) prevalence / mortality
C) mortality / morbidity
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Cholera is an example of a pandemic disease that
A) has multiple wild animal reservoirs and is thus difficult to eradicate.
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C) is spread through direct contact and has only a human reservoir.
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Influenza pandemics occur cyclically because
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B) clonal deletion
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Q:
An individual usually expresses ________ structurally distinct allele(s) that encode class I MHC proteins.
A) one
B) two
C) four
D) six