In nucleic acid, the point mutation is:()
A. One base-pair is replaced by another is called point mutation
B. Only the mutation that leads to the change of amino acid can be called point mutation
C. The mutation that don’t change phenotype is called point mutation
D. The mutation that causes dysfunction of a single gene is called point mutation
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Frameshift mutation results from base-pairs:()
A. Transition
B. Transversion
C. Hydrolysis
D. Insertion
E. Oxidation
Which of the following are not functions of the core of DNA pol:()
A. Synthesis of DNA in 5’→3’ direction
B. Synthesis of DNA in 3’→5’ direction
C. Proofreading
D. Ligation of Okazaki fragments
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
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.
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