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1、2022年江西工程硕士(GCT)考试考前冲刺卷（4）本卷共分为1大题50小题，作答时间为180分钟，总分100分，60分及格。一、单项选择题（共50题，每题2分。每题的备选项中，只有一个最符合题意） 1.在真核细胞中，对-鹅膏蕈碱不敏感的RNA合成是_。ArRNABhnRNACtRNADsnRNA 2.关于大肠杆菌启动子序列说法不正确的是_。APribnow框是RNA聚合酶的牢固结合位点BSextama框是RNA聚合酶的初始结合位点CSextama框的结构决定了转录的起始位点D-10序列和-35序列之间的距离大小是决定启动子强度的因素之一，两个序列之间为17 bp时转录效率最高 3.关于RNA
2、编辑的说法不正确的是_。A所用的向导RNA上有一小区段与被编辑的mRNA互补B可以在转录后水平改变一个基因的编码能力C被广泛用于改变许多mRNA的编码能力D通常使每个mRNA都发生很大的变化 4.真核生物基因转录过程中，首先结合于TATA序列的转录起始复合物因子是_。ATFDBTFACTFE 5.DNA依赖的RNA聚合酶的通读可以靠_。A因子与核心酶的结合B聚合酶跨越终止子蛋白-终止子复合物C抗终止蛋白与一个内在的因子终止位点结合，因而封闭了终止信号D抗终止蛋白以它的作用位点与核心酶结合，因而改变其构象，使终止信号不能被核心酶识别 6.识别RNA酶转录终止的因子是_。A因子B因子C因子D因子
3、7.第类内含子的剪接与前体mRNA剪接的相似之处是_。A机制相似，都是RNA自身催化B都需要U1 snRNPC两种内含子都形成精细的二级结构D都可以在没有蛋白的情况下进行 8.下列关于剪接小体的组装的说法中不正确的是_。A按有序的途径一步步完成B是前体mRNA剪接的基础C不需要ATPD伴随着多次snRNP的重组合 9.原核生物基因转录终止子在终止点前均有_。A回文结构B多聚A序列CTATA结构D多聚T结构 10.原核生物RNA聚合酶识别的启动子位于_。A转录起始点的上游B转录起始点的下游C转录终点的下游D无一定位置 11.参与前体mRNA剪接的snRNP_。A在剪接中起主要的催化作用B不同sn
4、RNP的蛋白成分各不相同C其RNA和蛋白组分都是其作用不可缺少的D主要通过蛋白组分与前体mRNA结合 12.TATA框存在于_。A聚合酶识别的所有启动子中B聚合酶识别的所有启动子中C聚合酶识别的大部分启动子中D聚合酶识别的大部分启动子中 13.下列有关真核生物转录的论述，哪一项是正确的_A利福霉素及利福平可抑制其RNA聚合酶B利福平与亚基结合C不作为转录模板的DNA链称为编码链D启动子通常位于结构基因的下游E转录终止时一定要因子参与 14.下列关于可变剪接的说法不正确的是_。A涉及不同的5和3剪接位点B与“组成型”剪接的机制完全不同C可以跨越外显子，也可涉及可变外显子或保留内含子D被用于在不同
5、组织和不同的发育阶段产生不同的蛋白质 15.原核生物启动子在-35和-10处有两个中心，-10处的序列对DNA解链有重要作用，此处_。A富A-TB富G-CCA-T、G-C各半 16.下面有关snRNA的叙述不正确的是_。AsnRNA只位于细胞核中BsnRNA可以由RNA聚合酶转录CsnRNA在进化的过程中是高度保守的D某些snRNA可以与内含子中的保守序列进行碱基配对 17.下列关于因子的描述哪一项是正确的_ARNA聚合酶的亚基，负责识别DNA模板上转录RNA的特殊起始点BDNA聚合酶的亚基，能沿53及35方向双向合成RNAC可识别DNA模板上的终止信号D参与逆转录过程 18.tRNA中的内含
6、子_。A通过两步转酯反应被切除B拼接酶系对它的剪接没有种族特异性C由核酶-内含子本身切除D在5和3剪接位点的序列是保守的 19.核基因mRNA内含子的正确拼接需要_。AGUAG拼接点B内含子3末段的一致序列PyXPyTPuAPyCsnRNAD以上都是 20.下列事件中，哪些发生在RNA合成过程中_ADNA聚合酶结合到RNA上BRNA聚合酶结合到DNA上C因子结合到RNA聚合酶上D因子结合到DNA聚合酶上 21.操纵子是_。A基因表达调控单元B阻遏蛋白结合位点CRNA聚合酶结合位点 22.负责转录延伸的是_。A因子B核心酶CRNA聚合酶的因子DRNA聚合酶全酶 23.The _ care of
7、the body requires an understanding of its needs, allowing for variations resulting from climate, age or occupation.AproperBtenderCwarmDmild 24.It is the business of the police to prevent and detect crime and of the law courts to punish _.AcrimeBsinCoffenceDfault 25.With regarding to this model of co
8、lor TV sets, the home-made ones are by no means those made in Japan.Aless inferior toBless inferior thanCinferior thanDinferior to 26.Could you _ reasons and examples for your answerAqualifyBquantifyCspecifyDsatisfy 27.Dont put off till tomorrow _ you can do today.AthatBwhatCwhenDwhether 28._ from t
9、he hilltop, the lake scenery is beyond description.ATo seeBSeeingCHaving seenDSeen 29._ for your laziness, you could have finished the assignment by now.AHad it not beenBWerent itCIt were notDHad not it been 30.This book _ me twenty dollars.Ais costBwas costCcostDhave been cost 31.Even a child would
10、 not be _ by such an obvious lie.Acut offBmade upCpulled downDtaken in 32.Mr. Wright was the _ president of Ace Construction Company.ApreviousBbeforeClatterDformer 33.In fresco painting to what is the paint appliedACanvas.BPaper.CPlaster.DRock. 34.According to the passage, where did the first colors
11、 for painting come fromAAnimal skins.BThe ground.CTrees and leaves.DCaves. 35.Which of the following can be inferred about what sixteenth and seventeenth-century artists thought of watercolor painting in comparison to oil paintingAWatercolor was more costly but was better.BOil painting was less perm
12、anent but more vivid.CWatercolor was not appropriate for finished works.DOil painting tended to be difficult to us 36.What is the main theme of the passageAThe decline of fresco painting.BThe predominance of oils over watercolor.CThe rediscovery of watercolor in England.DThe origins and development
13、of watercolor. 37.Who were the first watercolor artistsAEarly cave dwellers.BItalian fresco artists.CFlemish masters.DEighteenth-century English artists. 38.Which of the following statements is TRUE according to the passageAXinhua bookstores reform will be revealed in details.BThe reforms have been
14、reported to the government.CXinhua bookstore will soon accept foreign investment.DThe source said we didnt have to remain the majority shareholder. 39.What does the word domestic mean in ParA2A. Energetic.B. Excited.C. Alien.D. Nativ 40.What can we infer from Zhang Yashans statement in ParA2A. We of
15、ten receive many offers from investors.B. We will soon accept one or two offers in the next sixty days.C. Security firms are more interested in Xinhua bookstore than other firms.D. Foreign investment is welcomed by Chinese government. 41.What is the passage mainly aboutAThe largest bookstore is goin
16、g to accept foreign investment.BXinhua bookstore is going to have a shareholding reform.CXinhua bookstore must take actions according to the situation.DXinhua bookstore has to keep its promise with WTO. 42.Which of the following is NOT TRUE according to the passageAHuman population expands at a stra
17、ight upward trend.BPopulation growth has shown ups and downs in demographic history.CPopulation growth can not be regarded as a social failure.DIncrease in population is related to productivity. 43.Which is NOT the right word used to describe Xinhua bookstoreALargest.BOfficial.CPrivate.DProsperous.
18、44.How many significant demographic changes ever occurred in the past one million yearsAOne.BTwo.CThree.DNon 45.What can be concluded when the current tide of knowledge revolution ebbsAProductivity will rise.BProductivity will receive no impact.CPopulation growth will slow down.DPopulation growth wi
19、ll become accelerate 46.What is the concept most people have on population growthAThe population is always in constant geometric growth.BRapid growth is followed by a decline.CDecelerated growth is followed by a decline.DNo growth at all. 47.What is found to have close relationship with rapid increa
20、se in populationAWar between 2 countries.BWays discovered to increase productivity.CMigration from a continent to another continent.DA new religion beginning to be accepted by peopl 48.The qualified applicant should _.Abe familiar with use of certain softwareBbe familiar with telecommunicationCbe mu
21、ch experienced in lifeDhave joined various organizations 49.What is the advertised jobATo keep money for top companies.BTo keep books for top companies.CTo deal with accounts for top companies.DTo deal with personal affairs for top companies. 50.About the job of bookkeeping, all of the following information is clear except _.Ajob typeBdegree requiredCpaymentDjob description第16页 共16页第 16 页 共 16 页第 16 页 共 16 页第 16 页 共 16 页第 16 页 共 16 页第 16 页 共 16 页第 16 页 共 16 页第 16 页 共 16 页第 16 页 共 16 页第 16 页 共 16 页第 16 页 共 16 页