What is the source of complementary RNA in RNAi mechanism?

What is the source of complementary RNA in RNAi mechanism?
  1. Infection by viruses
  2. Mobile genetic elements
  3. Transgenic host
  4. Agrobacterium vectors

Solution

The source of complementary RNA in the RNAi mechanism can be from an infection by viruses with RNA genomes or mobile genetic elements (transposons) that replicate through an RNA intermediate.

Asked in: NCERT

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