In prokaryotes, which of the following enzymes may be functional both in the processes of removing RNA primer and adding deoxyribonuleotides:()
A. DNA polymerase III
B. DNA polymerase II
C. DNA polymerase I
D. exonuclease MFI
E. DNA ligase
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The fidelity of DNA replication do NOT include:()
A. The instant proofreading of DNA pol δin eukaryotes
B. The instant proofreading of primase
C. The selection of DNA pol for different bases
D. The strict rule of base complementary pairing
E. Mismatched bases are removed by activity of 3’→5’ exonuclease of DNA pol.
Which of the following statement about DNA polymerase of eukaryotes is NOT true:()
A. DNA pol α/primase are involved in initial synthesis of the nascent strand.
B. DNA polδ and ε are mainly responsible for the synthesis of DNA chains.
C. Replacement of DNA polymerase could happen during DNA synthesis process.
D. There are five kinds of DNA pol:α、β、γ、δ and ε in eukaryotes
In prokaryotes, filling the gaps generated by DNA replication or DNA repair mainly depends on ()
A. nuclease H
B. DNA polymerase I
C. DNA polymerase II
DNA polymerase α
E. DNA polymerase β
The correct statement about DNA polymerase III of prokaryotes is:()
A. with the activity of 3’→5’ exonuclease
B. with the activity of 5’→3’ exonuclease
C. with the activity of 3’→5’ polymerase
D. NTP as the substrate
E. only add substrate in the 3’ end of deoxyribonucleic acid
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