This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
[{'content': 'Fructose intolerance is due to deficiency of \nSelect and explain. \nA. Aldolase B, B. F ructokinase, C. Triokinase, D. Aldolase A', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Fructose intolerance is due to deficiency of aldolase-B.Incidence out of 1 is 20,000.It is an autosomal recessive inborn error of metabolism.Fructose-1-phosphate cannot be metabolized.Accumulation of fructose -1-phosphate will inhibit glycogen phosphorylase.Ref: DM Vasudevan, 7th edition, page no: 144', 'role': 'assistant'}]