Which of the Following Statements Is NOT Correct Concerning the Regulation

question 8

Multiple Choice

Which of the following statements is NOT correct concerning the regulation of the purine biosynthetic pathway?

• A)PRPP competitively inhibits the enzyme Gln:PRPP amidotransferase.
• B)ADP and GDP are feedback inhibitors of ribose-5-phosphate pyrophosphokinase.
• C)"A" and "C" nucleotides allosterically inhibit glutamine phosphoribosyl pyrophosphate amidotransferase (Gln:PRPP amidotransferase).
• D)The rate of IMP formation is dependent on the levels of the adenine and guanine nucleotides produced.

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Definitions:

Domestic Supply and Demand

Refers to the quantity of a product or service available and the desire for it within a single country.

Tariff Revenue

Income that a government earns from the imposition of import and export duties.

Dumping

The practice of exporting goods at a price lower than the home market price, often considered unfair competition.