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ordinary normal common usual
DNA pol α DNA polⅠ DNA pol γ DNA pol δ DNA pol Ⅲ
DNA polα与引发酶共同参与引发作用 DNA polδ催化链的生成 DNA polβ催化线粒体 DNA的生成 PCNA参与DNA pol δ的催化作用 真核生物 DNA pol有α、β、γ、δ和ε5种
DNA-polδ DNA-polα DNA-polγ DNA-polⅠ DNA-polⅢ
DNA pol Ⅰ可分为大小两个片段 DNA polⅡ具有3ˊ→5ˊ的外切酶活性 DNA pol Ⅲ在复制链延长中起主要作用 DNA pol Ⅲ由四个亚基组成 以四处脱氧核苷作为作用物
left standing was left to stand was remained standing remained standing
DNA-pol Ⅰ具有3'→5'外切酶活性 DNA-pol Ⅰ具有5'→3'外切酶活性 DNA-pol Ⅲ具有3'→5'外切酶活性 DNA-pol Ⅰ和Ⅲ都具有3'→5'外切酶活性
rescued being rescued to rescue to be rescued
DNA pol Ⅰ具有3ˊ→5ˊ外切酶活性 DNA pol Ⅰ具有5ˊ→3ˊ外切酶活性 DNA polⅠ及Ⅲ均具有内切酶活性 DNA pol Ⅲ具有3ˊ→5ˊ外切酶活性 DNA polⅠ及Ⅲ均具有 3ˊ→5ˊ外切酶活性
accommodation qualification occupation admission
DNA-polδ DNA-polα DNA-polγ DNA-polⅠ DNA-polⅢ
DNA-polδ DNA-polα DNA-polγ DNA-polⅠ DNA-polⅢ
DNA-polδ DNA-polα DNA-polγ DNA-polⅠ DNA-polⅢ
left standing was left to stand was remained remained standing
immediately after a period of drought. immediately after a period of flood. just before a drought struck. just before a flood struck.
DNA-pol Ⅰ具有3＇→5＇外切酶活性 DNA-pol Ⅰ具有5＇→3＇外切酶活性 DNA-pol Ⅲ具有3＇→5＇外切酶活性 DNA-pol Ⅰ和Ⅲ都具有3＇→5＇外切酶活性
possessions accommodations souvenirs groceries
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