Which of the Following Is Not Required for Purine Biosynthesis

question 20

Multiple Choice

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.

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