Genetic defect.
Diseases due to mutations in the gene codes for specific proteins.
Any disorder or abnormality that results from inherited factors (genes) (e.g., Tay-Sachs disease, sickle-cell anemia) (also called inherited disorder).
A disease which is caused by a change in the individual’s genetic material. The disease may be one which continues from generation to generation because of a “permanent” change in genetic makeup, or one due to a noninherited mutation.