All of the following porphyria are inherited in autosomal dominant mode, EXCEPT:: (A) Porphyria cutanea tarda, (B) Congenital erythropoietic porphyria, (C) Protoporphyria, (D) Acute intermittent porphyria
Answer is B. Porphyrias are either inherited or acquired. All inherited porphyrias follow autosomal dominant mode, EXCEPT: Congenital erythropoietic porphyria which is inherited in Autosomal Recessive mode X-linked protoporphyria/sideroblastic anemia.