<prompt> Which of the following is not true about Cystinosis?Cysteine stones in urine commonCorneal crystalsFanconi syndromeWhite blond hair and photophobia  <response>: Ans. A. Cysteine stones in urine commonCystinosis is an autosomal recessive genetic disorder of the renal tubules, characterized by the presence of carbohydrates and amino acids in the urine, excessive urination, and low blood levels of potassium and phosphates.Amino acidConditionEnzyme DefectClinical FindingsInheritanceCystineCystinosis Lysosomal MembranesCystinosis CTNS lysosomal effluxRenal Fanconi syndrome, Rickets,Renal failure, Photophobia,Hypotonia,Hypothyroidism,Blindness.ARCystine, lysine, arginine, ornithineClassic cystinuriaProximal renal tubule, jejunal mucosa Shared dibasic cystine Transport protein SLC3A1, SLC7A9Cystine nephrolithiasisAR 