問題詳情

64. 5-phosphoribosyl-1-pyrophosphate (PRPP) is a precursor in the synthesis of all of the following products except
________.
(A) histidine
(B) tryptophan
(C) arginine
(D) UMP
(E) AMP

參考答案

答案：C

統計：A:0,B:0,C:5,D:1,E:1

難度：計算中