<prompt> MRP2 gene defect results in which of the hereditary disorders of bilirubin metabolism and Transpo is:GilbesCrigler najjar type ICrigler najjar type IIDubin johnson-  <response>: PARAMETER Syndrome GILBES CRIGLER- NAJJAR TYPE I CRIGLER-NAJJAR TYPE II DUBIN-JOHNSON ROTORS Incidence 6-12 Very rare Uncommon Uncommon Rare Gene affected UGT1A1 UGT1A1 UGT1A1 MRP2 Unknown Metabolic defect Bilirubin conjugation No bilirubin conjugation Bilirubin conjugation Impaired canalicular expo of conjugated bilirubin Impaired canalicular expo of conjugated bilirubin Ref:Sleisenger and Fordtrans,E-9,P-326. 