試卷名稱:111年 - 111 國立臺灣大學碩士班招生考試:生物化學(A)#111221
年份:111年
科目:研究所、轉學考(插大)◆生物化學
50. Oxaloacetate uniformly labeled with
(i.e., with equal amounts of
in each of its carbon atoms) is condensed with unlabeled acetyl-CoA. After a single pass through the citric acid cycle back to oxaloacetate, what fraction of the original radioactivity will be found in the oxaloacetate?
(A) All
(B) 1/2
(C) 1/3
(D) 1/4
(E) 3/4