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Question
Alternative autotrophic routes to the Calvin cycle such as the reverse citric acid cycle and the hydroxypropionate pathway are unified in their requirement forA) CO2.
B) coenzyme A.
C) NAD(P)H.
D) organic compound(s) formed.
Answer
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Which of the following statements about chlamydial infections is TRUE?
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Cholera is an example of a pandemic disease that
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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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C) the vector is seasonal.
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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
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