Which of the following statements are correct regarding the…

Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 10 PCB Single Correct MCQ

Published on: August 14, 2026

Which of the following statements are correct regarding the process of RNA interference?

RNAi has been used to prevent nematode infestation of tobacco plants.
A and B

RNAi takes place in all eukaryotic organisms as a method of cellular defence.
C and D

The method involves silencing of specific mRNA using complementary dsDNA molecule that binds and prevents translation of mRNA.
A and C

Using retrovirus vectors, nematode-specific genes were introduced into the host plant.
B and C

Text Solution

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The correct answer is:

• RNA interference (RNAi) has been used to protect tobacco from the rootknot nematode Meloidogyne incognita by silencing nematode genes in the plant.

• RNAi is described as occurring in eukaryotes as a cellular defense mechanism.

• RNAi silences mRNA using complementary double-stranded RNA (dsRNA), not dsDNA.

• For the nematode-resistant tobacco, gene fragments were introduced using Agrobacterium-based plant vectors, not retroviruses.

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