[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fTHXdt9NG3zM0ZbbfHSnK1ErkmOPxZRZ3O1bKrfCI8ZM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2024-12-30 17:57:42",175242909,[8,9,10,11],"存在于细胞核内的tRNA前体","存在于细胞核内的mRNA前体","存在于细胞核内的rRNA前体","存在于细胞核内的snRNA前体",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},60,"1c6e8d566c41c255db91f8b9905a1c48","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffec059a1b96d98754a0e99b8dc5d88a5.jpg","生物化学 2024-2025（1）","00f2241e714845c3812be0c92ba43bc5","RNA生物合成 章节测验","hnRNA是()",[21,26,36,45,55,64,73,83,93,103],{"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},[],"2024-12-30 17:57:45",175242912,[31,32,33,34],"RNA聚合酶核心酶","RNA聚合酶&sigma;因子","DNA解旋酶","DNA拓扑异构酶","原核生物基因转录起始的正确性取决于()",{"answer":37,"createTime":28,"id":38,"options":39,"question":44,"source":24,"type":25},[],175242915,[40,41,42,43],"弱化子","操纵子","启动子","终止子","DNA分子上能被依赖于DNA的RNA聚合酶特异识别的部位叫()",{"answer":46,"createTime":47,"id":48,"options":49,"question":54,"source":24,"type":25},[],"2024-12-30 17:58:12",175242932,[50,51,52,53],"RNA聚合酶仅在DNA模板存在时催化磷酸二酯键的形成","RNA链增长的方向5'&rarr;3'","RNA的合成需要引物","RNA合成的模板是双链DNA中的一条链","下列关于细胞RNA生物合成的叙述哪一个是错误的?()",{"answer":56,"createTime":47,"id":57,"options":58,"question":63,"source":24,"type":25},[],175242935,[59,60,61,62],"真核RNA聚合酶也称为DNA指导的RNA聚合酶","RNA链延伸的方向为3'&rarr;5'","需要引物","真核RNA聚合酶可催化各种RNA的合成","下列关于真核RNA生物合成的描述哪一个是正确的?(",{"answer":65,"createTime":47,"id":66,"options":67,"question":72,"source":24,"type":25},[],175242938,[68,69,70,71],"只有在DNA存在时,RNA聚合酶才能催化磷酸二酯键的形成","在转录过程中,RNA聚合酶需要一个引物","RNA链的延长方向是5'&rarr;3'","在大多数情况下,DNA中只有一条链作为模板","关于RNA的转录过程,下列叙述不正确的是()",{"answer":74,"createTime":75,"id":76,"options":77,"question":82,"source":24,"type":25},[],"2024-12-30 17:58:13",175242942,[78,79,80,81],"正(+)链","负(-)链","cDNA","重链","基因有两条链,与mRNA碱基序列相同(仅T代替了U)的链称为()",{"answer":84,"createTime":75,"id":85,"options":86,"question":92,"source":24,"type":25},[],175242946,[87,88,89,90,91],"转录是以半保留方式获得序列相同的两条DNA链的过程","依赖于DNA的DNA聚合酶是多亚基酶,负责DNA的转录","细菌的转录物(mRNA)是多基因的","&sigma;因子指导真核生物hnRNA的转录后加工,最后形成mRNA","促旋酶在模板链产生缺口,决定转录的起始和终止","下列叙述中正确的是()",{"answer":94,"createTime":75,"id":95,"options":96,"question":102,"source":24,"type":25},[],175242949,[97,98,99,100,101],"&sigma;因子、核心酶和双链DNA在启动子形成的复合物","全酶、TFI和解链DNA双链形成的复合物","全酶、模板DNA和新生RNA形成的复合物","三个全酶在转录起始位点形成的复合物","&sigma;因子、核心酶和解旋酶形成的复合物","下面对三元转录复合物的描述中正确的是()",{"answer":104,"createTime":75,"id":105,"options":106,"question":111,"source":24,"type":25},[],175242952,[107,108,109,110],"mRNA的5'非转录区","mRNA的编码区","mRNA的3'非转录区","以上全是","可变剪接(选择性剪接)能增加转录产物,这些转录产物间的区别在于()"]