MISCELLENOUS
VACCINATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which viruses have single-stranded RNA that acts as a template for DNA synthesis?
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viroids
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retroviruses
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bacteriophages
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proviruses
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Explanation:
Detailed explanation-1: -So, the correct answer is ‘Retrovirus’.
Detailed explanation-2: -Retroviruses differ from other viruses in that each virion contains two complete copies of the single-stranded RNA genome.
Detailed explanation-3: -Retroviral DNA synthesis is absolutely dependent on the two distinct enzymatic activities of RT: a DNA polymerase that can use either RNA or DNA as a template, and a nuclease, termed ribonuclease H (RNase H), that is specific for the RNA strand of RNA:DNA duplexes.
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