Answer: Roots.
- A Leaves
- B Roots
- C Flowers
- D Fruits
Correct answer: B. Roots
Explanation: Meloidogyne incognita is a nematode that infects the roots of tobacco plants and reduces yield, and it was controlled using RNA interference.
Concept context
GM crops, transgenic animals, gene therapy, molecular diagnostics, and bioethics. Frequent 2–3 mark questions in NEET.