[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fSaoa2jyX-Us4njWRbZTmCUIthLOO3JZ__gGmzOFIb7A":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-10-13 11:06:16",99654822,[8,9,10,11],"DNA聚合酶Ⅰ","DNA聚合酶Ⅱ","DNA聚合酶Ⅲ","DNA聚合酶Ⅰ和Ⅲ",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},34,"1af9afbda5556dabf2e6f26d3dfe2c93","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fafcf4fb8e9bbc96e3bba259f64b8298e.png","分子生物学","f080e626cf664008afe4e6565f3a8223","第二单元测验","原核生物复制过程中,催化新链延长的聚合酶主要是( )",[21,32,41,44,53,63,72,81,90,99],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],99654812,[25,26,27,28],"碱基之间由氢键相连","DNA分子独特的双螺旋结构","DNA的半保留复制","DNA的边解旋边复制的特点","DNA分子复制能准确无误地进行的原因是( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],99654818,[36,37,38,39],"为半保留复制","为半不连续复制","为不对称复制","需要引物","关于DNA复制的叙述,下列哪项是错误的( )",{"answer":42,"createTime":5,"id":6,"options":43,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],99654823,[48,49,50,51],"DNA聚合酶Ⅰ活性最高,在DNA复制中起重要作用","DNA聚合酶Ⅱ活性最高,在DNA复制中起重要作用","DNA聚合酶Ⅲ是主要的DNA复制酶且具有3'&rarr;5'核酸外切酶作用","DNA聚合酶Ⅱ活性最高,在DNA复制中起重要作用,并具5'&rarr;3'核酸外切酶作用","以下是关于原核生物DNA聚合酶的叙述,正确的是( )",{"answer":54,"createTime":55,"id":56,"options":57,"question":62,"source":30,"type":31},[],"2023-10-13 11:06:17",99654824,[58,59,60,61],"在原核细胞只有一个","在原核细胞有多个","在真核细胞有一个或多个","由引物酶识别","关于DNA的复制起始点,以下叙述正确的是( )",{"answer":64,"createTime":55,"id":65,"options":66,"question":71,"source":30,"type":31},[],99654826,[67,68,69,70],"5'&rarr;3'聚合活性","缺口填充活性","3'&rarr;5'核酸外切酶活性","5'&rarr;3'核酸外切酶活性","为了保证复制中,DNA稳定性和高保真性,必须依赖于DNA聚合酶的以下活性( )",{"answer":73,"createTime":55,"id":74,"options":75,"question":80,"source":30,"type":31},[],99654827,[76,77,78,79],"DNA复制速度太快","双向复制","复制中DNA有缠绕打结现象","复制与解链方向相反","冈崎片段产生的原因( )",{"answer":82,"createTime":55,"id":83,"options":84,"question":89,"source":30,"type":31},[],99654828,[85,86,87,88],"形成嘧啶二聚体","导致碱基缺失","发生碱基插入","使磷酸二酯键断裂","紫外线对DNA的损伤主要是( )",{"answer":91,"createTime":55,"id":92,"options":93,"question":98,"source":30,"type":31},[],99654829,[94,95,96,97],"DNA复制","DNA重组","基因工程","逆转录","下列哪个过程中不需要DNA连接酶( )",{"answer":100,"createTime":55,"id":101,"options":102,"question":107,"source":30,"type":31},[],99654830,[103,104,105,106],"前导链是连续合成的","后滞链是不连续合成的","前导链和后滞链合成中均有一半是不连续合成的","不连续合成的片段称为冈崎片段","关于DNA复制的半不连续性说法错误的是( )"]