Regarding transgenic tobacco plant which is resistant to th…

Biology Biotechnology and Its Application Statement Based Questions Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 21, 2026

Regarding transgenic tobacco plant which is resistant to the nematode Meloidogyne incognita, the correct statements are

The nematode parasite infect the stems.
and

The nematode parasite causes DNA silencing.
and

The host plant cells contain the vector Agrobacterium.
only and

Host plant cells produce both sense and antisense RNA of a particular gene of the nematode only only All of these

Text Solution

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The correct answer is:

False – Meloidogyne incognita infects the roots, not the stems.

False – The nematode does not cause DNA silencing; RNA interference (RNAi) in the plant silences the nematode's gene expression.

True – The transgene is introduced into plant cells using the vector Agrobacterium tumefaciens.

True – The transgenic plant produces both sense and antisense RNA of a nematode gene, forming dsRNA and triggering RNAi.

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