This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of protein and amino acid, Subject name: Biochemistry
Albinism is due to deficiency of 
Select and explain. 
A. Tyrosinase, B. Homogentisate oxidase, C. Fumaryl acetoacetate hydrolase, D. Chylomicrons
A: Tyrosinase
Answer: A: Tyrosinase 
Explanation: Tyrosinase is completely absent, leading to defective synthesis of melaninRef: DM Vasudevan - Textbook of Biochemistry, 7th edition, page no: 238, fig 18.7