Which molecules facilitate the export of mature mRNA from the nucleus to the cytoplasm?
Show answer and explanation
Correct answer: Exportins and the nuclear pore complex
Only fully processed, mature mRNA associated with specific export proteins (like TAP/NXF1) is permitted to pass through the nuclear pore complex. This serves as a quality control mechanism to ensure defective transcripts are not translated.
Keep practicing
More Transcription and RNA Processing questions
- The 'Pribnow Box' is a sequence equivalent to which eukaryotic element?
- Which eukaryotic RNA polymerase is specifically responsible for the transcription of protein-coding genes into pre-mRNA?
- The 'TATA box' is a conserved promoter element in eukaryotes. What is its primary function during transcription initiation?
- During transcription, the RNA molecule is synthesized in which direction?
- In prokaryotes, which subunit of the RNA polymerase holoenzyme is essential for promoter recognition and initiation specificity?
- Which unique chemical linkage characterizes the 5' cap added to eukaryotic mRNA?