[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fwTmWp3t53W3ZSOfekJqHqnbdbAczWy82YS1Ac6S1OyU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2026-03-27 13:02:40",329787295,[8,9,10,11],"是一种精确的修复","需要Mut蛋白参与","可对DNA双链断裂进行修复","依赖于DNA甲基化的调控作用",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},10,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","364b04699bca40269748958cdcfcc21c","第2章 第4节 DNA修复","关于DNA损伤的错配修复的叙述错误的是( )",[21,26,35,44,53,62,70,79,84,93],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],329787296,[30,31,32,33],"G","A","T","C","DNA损伤的错配修复系统中,母链5'-GATC-3'序列中被甲基化的核苷酸是( )",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],329787297,[39,40,41,42],"①②③","②①③","②③①","③②①","DNA损伤的切除修复过程需要①DNA连接酶;②DNA聚合酶;③核酸切除酶,以上各种物质作用的先后顺序是( )",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],329787298,[48,49,50,51],"涉及填补空隙和连接等过程","需要先去除引物再连接","包括糖基化酶起始作用的修复","是对DNA损伤部位先进行切除,随后进行复制","关于DNA损伤的切除修复的叙述错误的是( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":24,"type":25},[],329787299,[57,58,59,60],"嘌呤","嘧啶","碱基","磷酸基","AP位点是指DNA损伤的碱基切除修复过程中DNA链上形成的去( )位点",{"answer":63,"createTime":5,"id":64,"options":65,"question":69,"source":24,"type":25},[],329787300,[66,67,48,68],"损伤部位被切除","是一种复制后修复方式","需要经过DNA片段的重组","关于DNA损伤的重组修复的叙述错误的是( )",{"answer":71,"createTime":5,"id":72,"options":73,"question":78,"source":24,"type":25},[],329787301,[74,75,76,77],"直接修复","切除修复","重组修复","SOS修复","嘧啶二聚体最简单的解聚方式是( )",{"answer":80,"createTime":5,"id":81,"options":82,"question":83,"source":24,"type":25},[],329787302,[74,75,76,77],"大肠杆菌DNA损伤的修复系统中最不精确,容易产生突变的修复方式是( )",{"answer":85,"createTime":5,"id":86,"options":87,"question":92,"source":24,"type":25},[],329787303,[88,89,90,91],"在DNA复制和修复过程都具有填补缺口的作用","具有5'-3'核酸外切酶活性","具有3'-5'核酸内切酶活性","以dNTP为底物","关于大肠杆菌DNA聚合酶I的叙述错误的是( )",{"answer":94,"createTime":5,"id":95,"options":96,"question":101,"source":24,"type":25},[],329787304,[97,98,99,100],"一种损伤可由多种途径修复","一种修复途径可参与多种DNA的损伤修复","经修复后可能存在突变","各种损伤都可以完全修复","关于DNA损伤的修复下列说法错误的是( )"]