Definition(s)
- An alteration in DNA sequence caused by a single nucleotide base change, insertion, or deletion.
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Definition from: GeneTests
from the University of Washington and Children's Health System, Seattle
- A gene mutation involving the substitution, addition, or deletion of a single nucleotide base.
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Definition from: Merriam-Webster's Medical Dictionary
by Merriam-Webster Inc.
Related discussion in the Handbook
See also Understanding Medical Terminology.