Oxaloacetate uniformly labeled with14C (ie., with equal amounts of14C in cach of its carbon atom

問題詳情

44. Oxaloacetate uniformly labeled with14C (ie., with equal amounts of14C in cach of its carbon atoms) iscondensed with unlabeled acetyl-CoA. After a single pass through the citric acid cycle back to oxaloacetate, whatfraction of the original radioactivity will be found in the oxaloacetate?
(A) All
(B) 1/2
(C) 1/3
(D) 1/4
(E) 3/4

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