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 Polymorphic
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Polymorphic: Pertaining to a polymorphism, a variation in the DNA that is too common to be due merely to new mutation. A polymorphism must have a frequency of at least 1% in the population.
Examples of polymorphic genes include those for sickle cell disease, thalassemia and G6PD deficiency. These genes are widely believed to offer an advantage against malaria.
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