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Questions and Answers
Which type of nucleotide biosynthetic pathway is almost identical in all organisms?
Which type of nucleotide biosynthetic pathway is almost identical in all organisms?
- De novo pathway (correct)
- Salvage pathway
- Neither de novo nor salvage pathways
- Both de novo and salvage pathways
From where do most organisms synthesize nucleotides in the salvage pathway?
From where do most organisms synthesize nucleotides in the salvage pathway?
- Carbamoyl phosphate synthase II
- Nucleosides or bases from diet or degradation of nucleic acids (correct)
- Extracellular hydrolysis of ingested nucleic acids
- Low molecular weight precursors
Which enzyme is involved in the de novo pathway of purine nucleotides?
Which enzyme is involved in the de novo pathway of purine nucleotides?
- Carbamoyl phosphate synthase II
- OMP decarboxylase
- ATCase (correct)
- Dihydroorotase
Which enzyme is involved in the pyrimidine biosynthesis pathway?
Which enzyme is involved in the pyrimidine biosynthesis pathway?
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Which route represents the major way by which bases become available in animals?
Which route represents the major way by which bases become available in animals?
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