(Q126) What is the major difference between purine and pyrimidine assembly? A) Pyrimidine synthesis is de novo whereas purines are obtained from salvage pathways B) Pyrimidines are assembled then attached to a sugar base whereas purines are assembled on ribose phosphate foundations C) Purine synthesis is de novo whereas pyrimidines are obtained from salvage pathways D) Pyrimidines use an inosinate precursor whereas purines rely on an orotate precursor E) Purine synthesis produces fumarate whereas pyrimidine synthesis releases oxaloacetate

Human Anatomy & Physiology (11th Edition)
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ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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(Q126) What is the major difference between purine and pyrimidine assembly?
A) Pyrimidine synthesis is de novo whereas purines are obtained from salvage pathways
B) Pyrimidines are assembled then attached to a sugar base whereas purines are
assembled on ribose phosphate foundations
C) Purine synthesis is de novo whereas pyrimidines are obtained from salvage pathways
D) Pyrimidines use an inosinate precursor whereas purines rely on an orotate precursor
E) Purine synthesis produces fumarate whereas pyrimidine synthesis releases
oxaloacetate
Transcribed Image Text:(Q126) What is the major difference between purine and pyrimidine assembly? A) Pyrimidine synthesis is de novo whereas purines are obtained from salvage pathways B) Pyrimidines are assembled then attached to a sugar base whereas purines are assembled on ribose phosphate foundations C) Purine synthesis is de novo whereas pyrimidines are obtained from salvage pathways D) Pyrimidines use an inosinate precursor whereas purines rely on an orotate precursor E) Purine synthesis produces fumarate whereas pyrimidine synthesis releases oxaloacetate
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