Which of the following serve as the enzyme in mitochondria DNA replication ? ()
A. DNA pol α
B. DNA pol γ
C. DNA pol δ
DNA pol Ⅰ
E. DNA pol Ⅲ
查看答案
Which of the following could proofreading, DNA repairing, filling of gaps? ()
A. DNA pol α
B. DNA pol γ
C. DNA pol δ
DNA pol Ⅰ
E. DNA pol Ⅲ
The sequence of tRNA 3' end is: ()
A. -CCA
B. -AAC
C. -CAA
D. -AAA
E. -UUU
Which of the following could recognize the origin of transcription: ()
A. ρ factor
B. core enzyme
C. σ factor of RNA-pol
D. α subunit of RNA-pol
E. β subunit of RNA-pol
aminoacyl-tRNA synthetase have specificity for: ()
A. amino acid only
B. tRNA only
C. amino acid and tRNA
D. GTP
E. ATP
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