Glossary Term

Allele

PCR TermsEN

Definition

Mutually exclusive alternative forms of the same gene occupying the same locus on homologous chromosomes, differing in nucleotide sequence and governing the same biochemical and developmental process.

Extended Notes

Source: National Cancer Institute, NCI Thesaurus 26.09d, C16277. 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

AlleleAlleles

References

NCI Thesaurus 26.09d — Allele (C16277)
Source: National Cancer Institute, NCI Thesaurus 26.09d, C16277. NCI definition, reproduced without modification under CC BY 4.0.