Q. Which of the following are the post-transcriptional events in an eukaryotic cell? A. Transport of pre-mRNA to cytoplasm prior to splicing. B. Removal of introns and joining of exons. C. Addition of methyl group at 5’ end of hnRNA. D. Addition of adenine residues at 3’ end of hnRNA. E. Base pairing of two complementary RNAs. Choose the correct answer from the options given below:
A) A, B, C only
B) B, C, D only
C) B, C, E only
D) C, D, E only
Explanation
[Solution by Claude - not from source] Splicing (B), 5' capping with methyl guanosine (C) and 3' poly-A tailing (D) are the hnRNA processing events. Splicing occurs in the nucleus before transport (A false), and complementary RNA pairing is not a processing step (E false). Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.