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RNA interference involves

1. Synthesis of mRNA from DNA
2. Synthesis of cDNA from RNA using reverse transcriptase
3. Silencing of specific mRNA due to complementary RNA
4. Interference of RNA in synthesis of DNA

Correct answer: Silencing of specific mRNA due to complementary RNA

Solution

RNA interference is a post-transcriptional gene-silencing mechanism in which a complementary RNA molecule guides the degradation or blocking of a specific mRNA. This prevents translation of that mRNA into protein.

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