This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Proteins and Amino Acids, Subject name: Biochemistry
Type I Tyrosinemia is caused by: 
Select and explain. 
A. Tyrosine transaminase, B. Fumarylacetoacetate hydrolase, C. 4 Hydroxy phenyl pyruvate hydroxylase, D. Maleyl acetoacetate isomerase
B: Fumarylacetoacetate hydrolase
Answer: B: Fumarylacetoacetate hydrolase 
Explanation: Ans. B. Fumarylaceto Acetate HydrolaseAmino acidurias and enzyme defectClassic Phenyl KetonuriaPhenylalanine HydroxylaseAlkaptonuriaHomogentisate OxidaseTyrosinemia Type I (Most common Tyrosinemia)Fumaryl Aceto Acetate HydrolaseTyrosinemia Type IITyrosine TransaminaseTyrosinemia Type IIIPara Hydroxy Phenyl Pyruvate hydroxylase/Para hydroxyl Phenyl Pyruvate DioxygenaseHawkinsinuriaPara Hydroxy Phenyl Pyruvate hydroxylase/Para hydroxyl Phenyl Pyruvate Dioxygenase is mutant, so that it catalyse only partial reaction.Segawa SyndromeGTP CyclohydrolaseAlbinismTyrosinase