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Biochemistry Practice Test Questions: Nucleic Acids
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Biochemistry Practice Test Questions: Nucleic Acids
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25 Questions

1. PRPP glutamyl amidotransferase, the first enzyme uniquely committed to purine synthesis is feed back inhibited by
2. Complete absence of hypoxanthine guanine phospharibosyl transferase causes
3. Okazaki pieces are formed during the synthesis of
4. A pyrimidine nucleotide is
5. trans-acting factors include
6. A purine nucleotide is
7. The acceptor arm in the tRNA molecule has
8. Ribothymidine is present in
9. In the biosynthesis of purine nucleotides the AMP feed back regulates
10. Infantile convulsions due to lesser formation of gamma amino butyric acid from glutamic acid is seen in the deficiency of
11. Tetrahydrofolate is required as a coenzyme for the synthesis of
12. The following cannot be salvaged in human beings:
13. Ring closure of formimidoimidazole carboxamide ribosyl-5-phosphate yields the first purine nucleotide:
14. All the enzymes required for de novo synthesis of pyrimidine nucleotides are cytosolic except
15. The common features of introns include all the following except
16. All the following statements about tRNA are correct except
17. The major catabolic product of pyrimidines in human is
18. Restriction endonucleases
19. Synthesis of RNA and a DNA template is known as
20. Restriction endonucleases recognize and cut a certain sequence of
21. In RNA molecule
22. Rifampicin inhibits
23. An Okazaki fragment contains about
24. Orotic aciduria type I reflects the deficiency of enzymes:
25. In biosynthesis of proteins the chain terminating codons are

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