Which of the following statements about purine biosynthesis in vertebrates is FALSE?
A) Many of the proteins are multifunctional in that they have more than one active site.
B) Six proteins form a multienzyme complex with covalent linkages.
C) The multienzyme complex is called a purinosome.
D) Two enzymes of single carbon metabolism are associated with the multifunctional enzyme complex.
E) One of the enzymes that contributes to the formation of 10-formyl-tetrahydrofolate is a multifunctional enzyme.
Correct Answer:
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