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Microbiology - DNA Replication

@ : Home > Microbiology > DNA Replication > Section 1

Exercise

  • Section 1
"Success has many fathers, while failure is an orphan."
- (Proverb)
1. 

Both strands of DNA serve as templates concurrently in
A. replication
B. excision repair
C. mismatch repair
D. none of these
2. 

Proofreading activity to maintain the fidelity of DNA synthesis
A. occurs after the synthesis has been completed
B. is a function of the 3'-5' exonuclease activity of the DNA polymerases
C. requires the presence of an enzyme separate from the DNA polymerases
D. occurs in prokaryotes but not eukaryotes
3. 

Which of the following repairs nicked DNA by forming a phosphodiester bond between adjacent nucleotides?
A. Helicase
B. DNA gyrase
C. Topoisomerases
D. DNA ligase
4. 

The enzyme that catalyzes the synthesis of DNA is called
A. DNA polymerase
B. DNA gyrase
C. DNA ligase
D. helicase
5. 

Which of the following possesses both 5'-3' and 3'-5' exonuclease activity?
A. Kornberg enzyme
B. DNA polymerase III
C. Taq DNA polymerase
D. None of these

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