Multiple Choice
What is unusual about the reaction catalyzed by ribonucleotide reductase?
A) It involves the conversion of -SH groups to -OH groups.
B) It uses a rare derivative of tetrahydrofolate.
C) It has a free radical mechanism.
D) This enzyme and its reaction occur only in a few species of archaebacteria.
Correct Answer:

Verified
Correct Answer:
Verified
Q35: The excretory products of uric acid catabolism
Q36: When phosphoribosyl pyrophosphate (PRPP)is used to form
Q37: The ribonucleotides that are reduced to deoxyribonucleotides
Q38: In the reactions catalyzed by xanthine oxidase,electrons
Q39: The structure of carbamoyl phosphate synthetase of
Q41: Which are purines?<br>A)Adenine and thymine.<br>B)Guanine and adenine.<br>C)Cytosine
Q42: 5-methylcytidine is a common modified base in
Q43: The major end product of purine degradation
Q44: Which is not a direct precursor of
Q45: The pathway for the synthesis of IMP