【简答题】什么是随机引物(random primer)?如何标记DNA?
【简答题】某钢厂原料系统皮带桁架安装完毕防腐涂装时,一外协工人在约6m高空探身进行外侧刷漆,不慎坠落,送医院抢救无效8小时后死亡,向上级报告。经查该工人进厂时未接受过安全教育,但在上岗前,进行了口头安全交底;事故发生时工人未使用任何个人防护措施。 问题: ①请判断事故发生的原因。 ②应采取哪些对策措施? ③简述事故处理的“四不放过”原则。 ④该起事故的上报是否符合程序规定?
【判断题】随机引物标记探针时,反应时可用Klenow酶。( )
【简答题】随机引物法和切口平移法是如何对探针进行标记的?
【简答题】什么是随机引物(random primer)?如何标记DNA?
【单选题】Directions: There are 4 passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A),B) ,C) and D). You should decide o...
A.
The author means that lots of people read few books.
B.
The author thinks that readers have only absorbed part of knowledge in books.
C.
The author holds that few people have a proper idea about what content some kind of books should include.
D.
The author considers that readers can scarcely understand most of the books.
【判断题】随机引物标记探针时,反应时可用DNA聚合酶Ⅰ。( )