Which of the Following Best Explains the Initial Steps for the Synthesis

Question

Which of the following best explains the initial steps for the synthesis of deoxynucleotides?
A)begins with reduction of the ribose residue in PRPP
B)deoxy PRPP is formed from deoxyribose-5-phosphate
C)formed by reduction of ribonucleotide counterparts
D)formed by oxidation of ribonucleotide counterparts
E)none of the above

Accepted Answer

Deoxynucleotides are formed by the reduction of their corresponding ribonucleotide counterparts. This reduction reaction is catalyzed by ribonucleotide reductase enzyme.