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Unformatted text preview: You can amplify the amount of viral nucleic acid by molecular cloning, by polymerase chain reaction (PCR), or by infecting additional susceptible cells to replicate more virus. 3. What is a negative polarity viral RNA? (5 points) A negative polarity RNA is anti-sense or complementary to the RNA strand that acts as a mRNA (has open reading frames for protein translation)....
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- Spring '10