isonymous substitution
isonymous substitution
[ī¦sän·ə·məs ‚səb·stə′tü·shən] (genetics)
Any deoxyribonucleic acid base-pair substitution within an exon that does not result in change in the amino acid sequence for which it codes. Also known as synonymous substitution.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.