USMLE Step 1 Quiz
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MICROBIOLOGY
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A 35-year-old man receives a positive screening test for HIV. A confirmatory test is ordered, which involves detecting viral nucleic acid. The laboratory technique starts by using an enzyme to synthesize a complementary DNA (cDNA) strand from the viral RNA genome, followed by amplification of the cDNA.
This diagnostic method is an essential application of which of the following molecular techniques?
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