This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Molecular Biology Techniques, Subject name: Biochemistry
Splicing is a process of - 
Select and explain. 
A. Activation of protein, B. Removal of introns, C. Synthesis of protein, D. Replication of DNA
B: Removal of introns
Answer: B: Removal of introns 
Explanation: Ans. is 'b' i.e., Removal of introns o In molecular biology and genetics, splicing is a modification of an RNA after transcription, in which introns are removed and exons are joined.o This is needed for the typical eukaryotic messenger RNA before it can be used to produce a correct protein through translation.o For many eukaryotic introns, splicing is done in a series of reactions which are catalyzed by the spliceosome a complex of small nuclear ribonucleoproteins (snRNAs), but there are also self-splicing introns,