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.