Which of the following is not required for purine biosynthesis?
(I)aspartate
(II)glycine
(III)glutamine
(IV)formyl addition to tetrahydrofolate
A)I only
B)II,IV
C)II,III
D)IV only
E)All of the above are required.

Question

Quizplus · Accepted Answer

All of the options listed (aspartate, glycine, glutamine, and formyl addition to tetrahydrofolate) are required for purine biosynthesis. Aspartate, glycine, and glutamine are amino acids that contribute to the formation of the purine ring, while formyl groups from tetrahydrofolate are necessary for adding carbon and nitrogen atoms to the growing purine molecule.

Which of the Following Is Not Required for Purine Biosynthesis