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Home Questions 7ZZD2QAKDS
Target Exam

CUET

Subject

Biology

Chapter

Biotechnology and its Applications

Question:

Assertion: Cellular defence mechanism in eukaryotes is RNAi.
Reason : RNAi is silencing of a specific tRNA.

Options:

Both Assertion (A) and Reason (R) are correct and R is the correct explanation of A.

Both Assertion (A) and Reason (R) are correct but R is not the correct explanation of A.

Assertion (A) is true but Reason (R) is not correct.

Both Assertion (A) and Reason are false (F ).

Correct Answer:

Assertion (A) is true but Reason (R) is not correct.

Explanation:

RNAi is the silencing of a specific mRNA. RNAi is a self-defense mechanism of eukaryotic cells, which specially prevent infection evoked by viruses . It can inhibit the expression of crucial viral proteins by targeting viral mRNA for degradation through cellular enzymes . In fact, RNAi does work effectively as an antiviral agent in plants. 

CUET Questions