Glossary Term

Single Nucleotide Polymorphism

PCR TermsEN

Definition

A variation of a single nucleotide at a specific location of the genome due to base substitution, present at an appreciable frequency between individuals of a single interbreeding population.

Extended Notes

Source: National Cancer Institute, NCI Thesaurus 26.09d, C18279. NCI definition, reproduced without modification under CC BY 4.0. Source identity and definition checked automatically on 2026-10-18. No individual clinical interpretation or human reviewer is asserted.

Also Known As

Polymorphism, Single BasePolymorphism, Single NucleotideSingle Nucleotide PolymorphismSNP