'RNA interference (RNAi)' technology has gained popularity in the last few years. Why? 1. It is used in developing gene silencing therapies. 2. It can be used in developing therapies for the treatment of cancer. 3. It can be used to develop hormone replacement therapies. 4. It can be used to produce crop plants that are resistant to viral pathogens. Select the correct answer using the code given below.
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A hard Science & Technology multiple-choice question from UPSC Prelims 2019. Attempt it above, then check the correct answer and detailed explanation below.
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Correct answer: A. 1, 2 and 4
RNAi is a gene-silencing mechanism, so it underpins gene-silencing therapies (1), cancer therapies (2) and virus-resistant crops (4). It is not used to develop hormone replacement therapies (3).
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