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What is the source of complementary RNA in RNAi mechanism?

Options

  1. AInfection by viruses
  2. BMobile genetic elements
  3. CTransgenic host
  4. DAgrobacterium vectors

Correct answer

A. Infection by viruses

Step-by-step solution

Pest Resistant Plants: Several nematodes parasitise a wide variety of plants and animals including human beings. A nematode Meloidegyne incognitia infects the roots of tobacco plants and causes a great reduction in yield. A novel strategy was adopted to prevent this infestation which was based on the process of RNA interference (RNAi). RNAi takes place in all eukaryotic organisms as a method of cellular defense. This method involves silencing of a specific mRNA due to a complementary dsRNA molecule that binds to an

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