This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Molecular Genetics, Subject name: Biochemistry
During post transcriptional modification of RNA the following process does not take place: 
Select and explain. 
A. Splicing, B. 5'capping, C. 3'polyadenylation, D. Glycosylation
D: Glycosylation
Answer: D: Glycosylation 
Explanation: Ans. D. GlycosylationRNA produced after transcription is hn RNA. To form m RNA it undergoes modifications to remove intervening sequence called introns by splicing. For this 5'capping and 3'tailing is done to stabilize RNA.