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Question
Why is so much emphasis placed on the genomic composition (e.g., ssRNA, dsDNA) of individual viruses. Provide examples to support your explanation.Answer
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Which of the following statements about chlamydial infections is TRUE?
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The Spanish flu of 1918 was caused by an ________ influenza virus.
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The study of the occurrence, distribution, and determinants of health and disease in a population is the field of
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A) incidence / prevalence
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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C) the vector is seasonal.
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A) clonal anergy
B) clonal deletion
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Clonal anergy is a state of
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B) high energy.
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An individual usually expresses ________ structurally distinct allele(s) that encode class I MHC proteins.
A) one
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C) four
D) six