Which of the Following Is a True Statement Regarding Pyrimidine

question 29

Multiple Choice

Which of the following is a true statement regarding pyrimidine biosynthesis in animals?

• A) PRPP and ATP are allosteric inhibitors.
• B) CTP is a feedback inhibitor.
• C) It is allosterically regulated at aspartate transcarbomoylase.
• D) UDP and UTP are feedback inhibitors of CPS-II.
• E) ACTase catalyzes the committed step in pyrimidine synthesis.

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