Pathology Mutation of which of the following gene is most impoant in Paroxysmal Nocturnal Hemoglobinuria A Decay accelerating factor (DAF) B Membrane inhibitor of reactive lysis (MIRL) C Glycosyl phosphatidyl inositol (GPI) D CD8 binding protein π‘ Explanation Mutation of which of the following gene is most impoant in Paroxysmal Nocturnal Hemoglobinuria β Correct Answer: C. Glycosyl phosphatidyl inositol (GPI)