Which of the following is not true of the reaction catalyzed by ribonucleotide reductase?
A) Glutathione is part of the path of electron transfer.
B) It acts on nucleoside diphosphates.
C) Its mechanism involves formation of a free radical.
D) There is a separate enzyme for each nucleotide (ADP,CDP,GDP,UDP) .
E) Thioredoxin acts as an essential electron carrier.
Correct Answer:
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