Biochemistry Amino Acid Metabolism 0f1d2ef2 Tyrosine is synthesized from- A Tryptophan B Phenylalanine C Histidine D Methionine High-Yield Explanation Ans. is 'b' i.e., Phenylalanine o Phenylalanine metabolism is initiated by its oxidation to tyrosine which then undergoes oxidative degradation.