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.
Quick GuideWomen's Health: Nutrition and Health Care Reform
Subscribe to MedicineNet's Women's Health Newsletter
Women's Health Resources
Last Editorial Review: 5/13/2016