Which among the following is not an autoimmune disease: (A) Myasthenia gravis, (B) Systemic lupus erythematosus, (C) Sickle cell disease, (D) graves diesease
Answer is C. Sickle cell disease is a genetic condition which is characterized by mutation in beta globin chain of hemoglobin (glutamic acid is replaced with valine in the 6th position of beta chain).
• Other given choices like SLE, Graves and MG are all autoimmune conditions