Choose the Correct Answer from the List Below

Multiple Choice

Choose the correct answer from the list below. Not all of the answers will be used.
-Purines and pyrimidines are derived from _________________.

A) de novo
B) xanthylate
C) riboflavin
D) amino acids
E) UTP
F) N⁵, N¹⁰-methylenetetrahydrofolate
G) nucleotide
H) gout
I) nucleoside
J) ATP
K) urate
L) salvage