問題詳情
23. Which of the following amino acids is the crucial precursor for the biosynthesis of melatonin?
(A) Phenylalanine
(B) Methionine
(C) Lysine
(D) Tryptophan
(E) Tyrosine
(A) Phenylalanine
(B) Methionine
(C) Lysine
(D) Tryptophan
(E) Tyrosine
參考答案
無參考答案
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