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4. Oxaloacetate uniformly labeled with 14C (ie with equal amounts of 14C in each of its...

4. Oxaloacetate uniformly labeled with 14C (ie with equal amounts of 14C 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?

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