All of the following are directly involved in the synthesis of deoxyribonucleic acid except _______.
A) Thioredoxin
B) NADPH
C) Ribonucleotide reductase
D) Thioredoxin reductase
E) HGPRT

Question

Quizplus · Accepted Answer

HGPRT (Hypoxanthine-guanine phosphoribosyltransferase) is involved in the purine salvage pathway, not directly in the synthesis of deoxyribonucleic acid (DNA). Thioredoxin, NADPH, Ribonucleotide reductase, and Thioredoxin reductase all play roles in the reduction of ribonucleotides to deoxyribonucleotides, which are the building blocks of DNA.

All of the Following Are Directly Involved in the Synthesis