09-10分子生物学期末试卷答案VIP免费

福建农林大学期末考试试卷参考答案2009—— 2010 学年第 学期课程名称： 分子生物学 考试时间 120 分钟 专业 年级 班 学号 姓名 题号一二三四总得分得分评卷人签字复核人签字得分一、填空题（每空 0.5 分，共 10 分）1、There are five types of DNA repair, include photo-reactivation repair, ______________， ______________，______________ and error-prone repair.（切除修复；重组修复；错配修复）2 、 The holoenzyme of E.coli RNA polymerase is_______________ ， the core enzyme is made up of _______________ ， while the___________ factor has the ability to recognize specific binding sites.（α2ββ’σ；α2ββ’；σ）3、The eukaryotes have a well-defined cell cycle.The phase are：G1，________，________ and M.（S；G2）4、Only one strand of a DNA duplex will be transcribed. So the RNA is identical in sequence with another strand of the DNA which is called _____________ ，and the template strand is _____________.（有义链；反义链）5、In eukaryotes, mRNA processing includes the following steps: addition of at 5’end, addition of at 3’end, removal of , joining together the ,And these take place in .（M7G 帽子结构；poly(A)尾巴；内含子；外显子；细胞核）6、The structure is a common secondary structural reprensentation of tRNA molecules. The tertiary structure of tRNA molecules is . （三叶草；L）7、In the large 60S subunit of the eukaryote ribosome, there are rRNA, and rRNA, and rRNA. (5S；5.8S；28S) 得分二、名词解释（每小题 2 分，共 30 分）1、Promoter：RNA 聚合酶结合并起始转录的一段 DNA 序列。2、Semi-conservative replication：半保留复制，亲代双链 DNA 以每条链为模板，按碱基配对原则各合成一条互补链，这样一条亲代 DNA 双螺旋，形成两条完全相同的子代DNA 螺旋，子代 DNA 分子中都有一条合成的“新”链和一条来自亲代的旧链。3、Intron：真核生物 DNA 编码序列中间隔的非编码序列，它们也能被转录成 RNA，但在 mRNA 成熟加工中会被切...