[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fAPfTRS-AyCfceUK70gni5I5hZova3NW6-qK5AYAvaRQ":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-06-17 13:24:40",202592471,[8,9,10,11],"定量PCR可用于病原体的核酸检测","定量PCR是半定量检测PCR产物的方法","定量PCR在封闭状态下进行,有效避免了产物的实验室污染","TaqMan探针技术中TaqMan探针的位置位于两条弓|物之间",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},43,"1354229cab19974a359f31adebb05d1e","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4c8e28dacf2eb0c3618591e688d30323.png","分子生物学检验技术","work_42978194","任务9.1 点火系统","关于定量PCR的描述,不正确的是( )",[21,32,41,50,59,68,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],202592464,[25,26,27,28],"Taq DNA聚合酶的量","模派的纯度","模须的含量","待扩增方段的长度","PCR反应中延伸的时间取决于 ( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],202592466,[36,37,38,39],"扩增的对象是DNA序列","是一种酶促反应","由变性、退火、延伸组成-一个循环","循环次数越多产物量就越大,可无限增加循环次数提高产物量","有关PCR的描述,下列不正确的是 ( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],202592467,[45,46,47,48],"引物过长可能提高退火温度","两条引物的Tm值相差尽量大","尽量避免引物二聚体的出现","反应体系中引物的浓度一般在0. 1-0.2umolL之间","下列关于定量PCR引物设计的原则中,不正确的是( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],202592468,[54,55,56,57],"DNA聚合酶","限制性内切酶","DNA酶","逆转录酶","mRNA为模板合成cDNA的酶是 ( )",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],202592469,[63,64,65,66],"Ct与反应模板的初始模板量成正比","Ct值处于扩增曲线和荧光本底基线的交叉点","Ct值是荧光定量PCR获得的最初的数据资料","Ct代表了反应达到预定设置的荧光阈值时的循环次数","关于Ct值的描述,不正确的是( )",{"answer":69,"createTime":5,"id":6,"options":70,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],202592473,[75,76,77,78],"是一种可以检测点突变的技术","需正常和异常两种探针","PCR产物必须进行电泳分离","需要寡核苷酸探针","有关PCR-ASO描述错误的是( )",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],202592475,[84,85,86,87],"首先应将RNA转化为cDNA才能进行PCR","逆转录酶不需要引物进行逆转录反应","oligo (aT)理论上可以将所有的mRNA进行逆转录反应","模板为RNA","关于逆转录PCR的描述,不正确的是( )",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],202592478,[93,94,95,96],"扩增产物可以通过电泳分离","扩增时应注意各对引物之间的扩增效率基本一致","在同一反应体系中加入多对引物","扩增的产物为同一DNA片段","关于多重PCR, 错误的是( )",{"answer":99,"createTime":100,"id":101,"options":102,"question":108,"source":30,"type":31},[],"2025-06-17 13:24:41",202592482,[103,104,105,106,107],"dDNA","Mg2+","引物","模板","小牛血清白蛋白","DNA聚合酶在催化DNA复制是不需要下述哪种物质的参与( )"]