NO is synthesized by: (A) Uracil, (B) Aspaate, (C) Guanosine, (D) Arginine
Answer is D. Nitric oxide is formed from Arginine by the enzyme Nitric oxide synthase.The enzyme utilizes NADPH and molecular oxygen. Citrulline is also formed.Ref: DM Vasudevan - Textbook of Biochemistry, 7th edition, page no: 227