This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'In RNA, gene during processing undergoes all, except \nSelect and explain. \nA. Chemical hydrolysis, B. Terminal addition, C. Nucleoside modification, D. Nucleoside cleavage', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Post-transcriptional processing involves :-\nCleavage of large precursor of RNA to a smaller molecule by the action of endonuclease.\nSplicing (removal of introns)\nTerminal addition of nucleotides\nNucleoside modifications', 'role': 'assistant'}]