<prompt> Which is wrong about Crigler-Najjar syndrome Type - 1Very high level of unconjugated bilirubin occurs in Neonatal periodKernicterus is usualIt responds well to phenobarbitoneHepatic histology is normal  <response>: Criggler Najjar syndrome Feature Type 1 Type 2 Total serum bilirubin mgdl 18-45usually 20 6-25usually 20 Routine liver tests normal Normal Response to phenobarbitone None Decreases bilirubin by 25 Kernicterus Usual Rare Hepatic histology Normal Normal Bile characteristics. Color Pale or colorless pigmented Bilirubin fractions 90 unconjugated Largest fraction mean:57 monoconjugates Bilirubin UDP-glucuronosyl transferase activity Typically absent, traces in some patients Markedly reduced :0-10 of normal Inheritance Recessive Predominantly recessive ARAD 