Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Biallelic
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Biallelic: Pertaining to both alleles (both alternative forms of a gene). For example, biallelic mutations in the gene MYH predispose to colon cancer.