If Insufficient Quantities of 5-Phosphoribosyl 1-Pyrophosphate (PRPP) Are Present, an Accumulation

question 46

Multiple Choice

If insufficient quantities of 5-phosphoribosyl 1-pyrophosphate (PRPP) are present, an accumulation of which intermediate in the pyrimidine biosynthetic pathway will occur?

• A) Carbamoyl phosphate
• B) Carbamoyl aspartate
• C) Dihydroorotate
• D) Orotidine-5'-monophosphate
• E) Orotic acid

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