Home Biology Biotechnology and Its Application NCERT When DNA is transcribed into mRNA, usually t…
Biology Biotechnology and Its Application NCERT Single Correct MCQ
Published on: August 21, 2026

When DNA is transcribed into mRNA, usually the mRNA remains single-stranded, but in some cases anRNA can be made that is complementary to the mRNA. This is called _______ and its main function is to_______

A
Antisense RNA, block gene expression
B
Antisense RNA, amplify mRNA
C
Antisense RNA, enhance translation
D
Reverse transcription, enhance translation

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The correct answer is:
A

Antisense RNA is a single-stranded RNA molecule complementary to a specific mRNA. It binds to the mRNA and prevents its translation, thereby blocking gene expression.

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