Catecholamines are synthesized from: (A) Tryptophan, (B) Tyrosine, (C) Methionine, (D) Histidine
Answer is B. Tyrosine -------------------->DOPA ---------------->dopamine ----------------->norepinephrine ----------------->epinephrine (catecholamines)Ref: DM Vasudevan - Textbook of Biochemistry, 7th edition, page no: 235