BIO NMDCAT Ribonucleic acid (RNA)

nmdcat.online July 3, 2026

84. The presence of double-stranded RNA structures within a eukaryotic cell’s cytoplasm usually serves as a cellular signal for

A. Enhanced translation of structural proteins

B. Activation of the RNA interference (RNAi) defense pathway

✓

C. Increased export of transcripts through nuclear pores

D. Rapid transcription of ribosomal RNA subunits

📝 Explanation

Double-stranded RNA is a hallmark of viral replication; eukaryotic cells use the Dicer and RISC pathways to recognize and destroy it.

📖 Additional Information

Enhanced translation of structural proteins
Activation of the RNA interference (RNAi) defense pathway
Increased export of transcripts through nuclear pores
Rapid transcription of ribosomal RNA subunits

Double-stranded RNA is a hallmark of viral replication; eukaryotic cells use the Dicer and RISC pathways to recognize and destroy it.

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