<prompt> False about Criggler najar syndrome?Absence of UDPG enzymeNormal liver biopsyConjugated hyperbilirubinemiaType 1 is more severe  <response>: Ans. is c i.e., Conjugated hyperbilirubinemia Criggler-Najjar Syndrome CN syndrome is a congenital unconjugated hyperbilirubinemia. Basic defect is either reduced or absent UDPG transferase. There are two types of CN syndrome:-1 Type I It is an autosomal recessive disorder in which UDPG transferase is absent. Thus phenobarbitone has no effect as enzyme is absent. It is more severe hyperbilirubinemia than type II. There may be kernicterus. LFTs and liver histology are normal.2 Type II It is an autosomal dominant disorder in which UDPG transferase is reduced. Phenobarbitone can reduce unconjugated Bilirubin by inducing UDPG transferase. LFTs and liver histology are normal and there is no kernicterus 