Biochemistry Type I Tyrosinemia is caused by: A Tyrosine transaminase B Fumarylacetoacetate hydrolase C 4 Hydroxy phenyl pyruvate hydroxylase D Maleyl acetoacetate isomerase 💡 Explanation Type I Tyrosinemia is caused by: ✓ Correct Answer: B. Fumarylacetoacetate hydrolase