Explanation:
The process by which a pre-mRNA undergo various modification so that it can become a mature RNA is called RNA processing . During RNA processing, splicing is an important step. During splicing, the introns are precisely excised and exons are ligated together. A process of alternative splicing is excised by which more than one mRNA species can be produced from a single pre-mRNA. Thus mRNA processing is the method that allows a gene to produce different proteins. secondly, the regulation of genes initiate the control of gene products.