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Definition of Alternative splicing

Alternative splicing: A mechanism by which different forms of mature mRNAs (messengers RNAs) are generated from the same gene. Alternative splicing is a regulatory mechanism by which variations in the incorporation of the exons, or coding regions, into mRNA leads to the production of more than one related protein, or isoform.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=16831
Last Editorial Review: 6/14/2012

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