<prompt> A young male presented with X-linked recessive disorder with hyperuricemia and mild retardation developsBronch chain amino acids metabolites deficiencyHemogentisate oxidase defective enzymesHypoxanthine phosphoribosyl transferase deficiencyPhenylalanine hydroxylase deficiency  <response>: The X linked inherited disorder is Lesch Nyhan Syndrome. This is due to the deficiency of HGPase.The rate of Salvage Pathway of Purine is reduced.Ref: DM Vasudevan - Textbook of Biochemistry, 7th edition, page no: 568 