Read the following statement about RNAi silencing. (I) RNAi…

Biology Biotechnology and Its Application Statement Based Questions Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 14, 2026

Read the following statement about RNAi silencing.

(I) RNAi takes place in all eukaryotic organisms as a method of cellular defence.

(II) RNAi involves silencing of a specific mRNA due to a complementary ds RNA molecule.

(III) The source of CRNA could be from an infection by viruses having transposons.

Statements (I) and (II) are true but (III) is false

Statements (II) and (III) are true but (IV) is false

Statement (II) is true but (I) and (III) are false

All statements are true

Text Solution

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The correct answer is:

(I) RNAi occurs in eukaryotes as a cellular defense mechanism.

(II) RNAi silences a specific mRNA using complementary double-stranded RNA (dsRNA).

(III) The complementary RNA may originate from viruses or mobile genetic elements (transposons).

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