<prompt> False about kernicterus is ___No long term effectOccurs with bilirubin more than 25 mgDeposition in basal ganglionOpisthotonus  <response>: When blood level of bilirubin is more than 20 mgdl the capacity of albumin to bind bilirubin is exceeded.in young children before the age of i year, the blood brain barrier is not fully developed and therefore free bilirubin enters the brain .It is deposited in basal ganglia,leading to mental retardation,fits,encephalitis and spasticity. Ref : TEXTBOOK OF BIOCHEMISTRY,D.M.VASUDEVAN,PG NO:252,6th edition 