This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Carbohydrates, Subject name: Biochemistry
Galactosemia enzyme defect: 
Select and explain. 
A. Fructokinase, B. Glucokinase, C. Galactose 1 Phosphate Uridyl transferase, D. Glucose 6 Phosphatase
C: Galactose 1 Phosphate Uridyl transferase
Answer: C: Galactose 1 Phosphate Uridyl transferase 
Explanation: Ans. C. Galactose 1 Phosphate uridyl transferase(Ref: Harper 31/e page 191)GalactosemiaEnzyme DeficiencyGalactose 1 Phosphate uridyl transferase (Classic Galactosemia)GalactokinaseUDP Hexose 4 Epimerase