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基因芯片（gene chip）
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考题
In July 1989, Dr.Fox and a team of scientists achieved a major scientific breakthrough.Fox discovered the gene (基因) that causes cystic fibrosis (膀胱纤维症) (CF).Many geneticists consider it 's one of the most significantdiscoveries in human genetics.Theresults of Fox work have helped scientists developtests that identify carriers of the CFgene.They hope his research could cure CF.a testhas been developed to identify peoplerrying the cystic fibrosis gene.The test isbased on knowing where the gene is locatedhe CF gene is a recessive gene.Thismeans a person can carry one copy of the gene andstill not be affected by the disease.However if this person has children with anothererson who carries the Cf genethere is a 25 chance that their children will inherit twoopies of the gene and sufferfrom the disease.The test identifies whether pat for cysticrents carrythe defective CF gene.Researchers are also using Fox discovery to find a curefibrosis.They areworking to produce a drug that will change the activity of the Cf geneId alsoattempting to replace the defective gene with one that functions properly.Itdifficultto produce a drug that changes the Cf gene but does not affect the 100000thergenes of human.But Fox discovery has at least given a chance for the cure othe CF1.A person with ( ) of a harmful recessive gene will be affectedA.one copyB two opiesC.no copiesD three copies.2.We can find answers to the following questions in the passage except ()A.Do people with CF live longer than they did in the past.B Describeused to treat CFC.Evaluate the current methods used to treat CFD.Describe the drugs used to treat CF3.The following statements are true except ()A Only one quarter of people will have chance to have the disease.B.Fox discovery help scientist develop tests that identify carriers of the CF geneC.Scientist has already produced a drug to CFD.To produce a drug is not easy because it should changes the CF gene but notaffectothers4.The word “recessive” (line 6) probably means ()A.hiddenB concealingC.faintD covered5.The best title for the passage would be ()A.Why People Have CFB.The Drugs Used to Treat CFC.The Methods of Curing CFD.TheSignificance of the DiscoveryCystic Fibrosis Gene
考题
有关基因芯片的描述,错误的是()。
A、基因芯片属于一种特殊类型的核酸杂交技术B、基因芯片又可称为DNA微阵列C、基因芯片制作检测的原理是DNA的半保留复制D、基因芯片现已广泛地用于细胞或组织基因表达谱测定
考题
TD－SCDMA系统中上行导频时隙(UpPTS)的结构是()
A.GP（32chip）＋SYNC（64chip）B.GP（32chip）＋SYNC（128chip）C.SYNC（64chip）＋GP（32chip）D.SYNC（128chip）＋GP（32chip）
考题
21世纪被认为是生物的世纪，目前基因芯片可以在很短时间内观察病变的细胞，并分析出数种由于基因突变而引起的疾病。下列与基因芯片有关的叙述中，不正确的是（）A、利用基因芯片可以进行基因鉴定B、基因芯片可以检测变异基因C、基因芯片可以改造变异基因D、基因芯片技术能识别碱基序列
考题
TD-SCDMA系统中上行导频时隙（UpPTS）的结构是（）A、GP（32chip）＋SYNC（64chip）B、GP（32chip）＋SYNC（128chip）C、SYNC（64chip）＋GP（32chip）D、SYNC（128chip）＋GP（32chip）
考题
问答题在哺乳动物基因组中，如何实现stable gene repression或gene firmly shut off？
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