[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fZ-S0Ln-yALWRqb1duZFB62YiFeZ0Wm34WyDOU4brJt0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2023-11-06 22:30:31",22887233,[8,9,10,11],"10%","20%","30%","40%",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},10,"ab314730471adc18ba4a94162a6b0dd9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc14f5e9bf61f026e215f84496b3772d1.jpg","基因工程-2023年秋-21级生物科学","248156cd37aa4f5ca240afc0d725112a","你准备好学习基因工程课程了吗","本课程&quot;线上&quot;课程成绩在期末所占的比重为()",[21,26,36,47,56,61,66,71,78,83],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":28,"id":29,"options":30,"question":35,"source":24,"type":25},[],"2023-05-21 23:18:20",22887234,[31,32,33,34],"识别序列长度一般为4~6bp","只能识别和切割原核生物DNA分子","识别序列具有回文结构","切割原核生物DNA分子","对限制性内切酶的作用,下列哪能个不正确( )",{"answer":37,"createTime":28,"id":38,"options":39,"question":45,"source":24,"type":46},[],22887235,[40,41,42,43,44],"限制酶是外切酶而不是内切酶","限制酶在特异序列(识别位点)对DNA进行切割","同一种限制酶切割DNA时留下的末端序列总是相同的","一些限制酶在识别位点内稍有不同的点切割双链DNA,产生黏末端","一些限制酶在识别位点内相同的位置切割双链DNA,产生平末端","下面有关限制酶的叙述哪些是正确的?( )",1,{"answer":48,"createTime":49,"id":50,"options":51,"question":54,"source":24,"type":55},[],"2023-05-21 23:18:29",22887520,[52,53],"正确","错误","DNA的一级结构,就是指4种核苷酸的连接及其排列顺序,表示了该DNA分子的化学构成.()",3,{"answer":57,"createTime":49,"id":58,"options":59,"question":60,"source":24,"type":55},[],22887521,[52,53],"吸光度增加到最大值一半时的温度称为DNA的解链温度,或溶点.()",{"answer":62,"createTime":49,"id":63,"options":64,"question":65,"source":24,"type":55},[],22887522,[52,53],"DNA提取过程中,我们可以用H2O也可以用TE来溶解DNA.()",{"answer":67,"createTime":49,"id":68,"options":69,"question":70,"source":24,"type":55},[],22887523,[52,53],"TE中的T代表Tris.()",{"answer":72,"createTime":73,"id":74,"options":75,"question":77,"source":24,"type":25},[],"2023-11-06 22:30:32",103763117,[76,32,33,34],"识别序列长度一般为4~8 bp","对限制性内切酶的作用,下列哪能个不正确()",{"answer":79,"createTime":73,"id":80,"options":81,"question":82,"source":24,"type":46},[],103763118,[40,41,42,43,44],"下面有关限制酶的叙述哪些是正确的?()",{"answer":84,"createTime":85,"id":86,"options":87,"question":88,"source":24,"type":25},[],"2024-09-18 17:52:37",159625612,[8,9,10,11],"&quot;线上&quot;《基因工程》课程成绩在期末总评中所占的比重为()"]