Bal31 is also an enzyme which is used. Which of the following statements hold true in its context? ____________
A. It is having only 3’-5’ exonuclease activity and no endonuclease activity
B. It is having only an endonuclease activity
C. It is having 5’-3’ exonuclease activity
D. It leads to shortening from both the ends
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Enzyme commonly used for carrying out ligation reaction is ____________
A. Transferase
B.Reverse transciptase
C. Ligase
DNase
Which of the following is false about klenow fragment? ____________
A. Polymerization activity
B. 3’→5’ exonuclease activity
C. 5’→3’ exonuclease activity
D. 324 – 928 residue of polymerase I
在组合逻辑电路中,消除竞争冒险的方法有__、__和__。
系统分析员应善于帮助企业领导分析企业环境、确定企业目标、( )、改进企业系统。
A. 抓住关键因素
B. 评价投资风险
C. 指定领导决策
D. 管理企业财务
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