2025 Biotechnology and its ApplicationsRNA Interference (RNAi) Medium Question 5 of 86 in Biotechnology and its Applications

Given below are two statements:
Statement I: Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II: RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below:

A Both statement I and statement II are correct
B Both statement I and statement II are incorrect
C Statement I is correct but statement II is incorrect
D Statement I is incorrect but statement II is correct

The answer is D.

Solution

Statement I is incorrect (tRNA and rRNA actively interact with mRNA in translation). Statement II is correct.

Statement I is false: During translation, tRNA binds mRNA via anticodon-codon base pairing, and rRNA aligns and binds mRNA. Statement II is true: RNAi is conserved across all eukaryotes as an innate defense against transposons and viral infection.

Concept RNAi and Translation Mechanism

Biotechnology and its Applications in past papers

86 questions from this chapter have appeared across 26 exam years.