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Purine Metabolism: Exploring the Pathways for Synthesizing and Degrading Purines

Question 1 of 15

Which enzyme catalyzes the rate-limiting step in de novo purine biosynthesis?

  1. Phosphoribosyl pyrophosphate amidotransferase (PPAT)
  2. Glutamine phosphoribosyl pyrophosphate amidotransferase (GPAT)
  3. Inosine monophosphate dehydrogenase (IMPDH)
  4. Hypoxanthine-guanine phosphoribosyltransferase (HGPRT)

Prize Money

15₹7 Crores
14₹1 Crore
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12₹25,00,000
11₹12,50,000
10₹6,40,000
9₹3,20,000
8₹1,60,000
7₹80,000
6₹40,000
5₹20,000
4₹10,000
3₹5,000
2₹2,000
1₹1,000