The ____ ring is built onto ribose-5-phosphate of PRPP for its de-novo nucleotide biosynthesis, while the...
The ____ ring is built onto ribose-5-phosphate of PRPP for its de-novo nucleotide biosynthesis, while the ring structure of the ______ bases are synthesized separately and then coupled to ribose-5-phosphate via the C-N glycosidic bond.
Select one:
a. inosine : adenine
b. inosine : uracil
c. uracil : inosine
d. uracil : adenine
e. None of these
Homework Answers
1. Answer: Option B
is correct
Explanation:
For de-novo purine biosynthesis, the Ionosine ring is synthesized
on to the ribose-5-phosphate of PRPP.
IMP ------> AMP
IMP ------> GMP
Pyrimidine bases are synthesized separately and coupled to
ribose-5-phosphate via the C1-N glycosidic linkage.
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The ____ ring is built onto ribose-5-phosphate of PRPP for its
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