cloning-and-DNA-newPPT课件

.,1,Module5Cloning,.,2,WelcometomyEnglishclass!,.,3,Dolly(1997-2003),.,4,Whatotheranimalshavebeencloned?,Firstclonedmule,Clonedmonkeys,.,5,Firstclonedhorse,Firstclonedcat,.,6,.,7,VocabularyandReadingCloningandDNA,.,8,Revision,technicalterms,基因gene酸性的acid细菌bacteria胚胎embryo酶enzyme组织tissue有机体organism干细胞stemcell基因的，遗传学的genetic生物多样性的biodiversity,.,9,Readthepassageandfindtheparagraphswhichdescribe:,1.whenthestructureofDNAwasdiscovered2.howtoclonesomething3.fourpossiblereasonsforcloning4.thedisadvantagesofcloning5.theresearchintoDNAhashelpedsolvecrime6.CohenandBoyerdiscoveredaprocedure,P1,P3,P4-7,P4-7,P8,Fastreading,P2,.,10,atransparenttwistingladder,madeofthefundamentalcomponentsoflife,DNA,Intensivereading,1.PleasedescribethestructureofDNA.2.WhatistherelationshipbetweenDNAandgene?,P1,.,11,GeneispartofDNAthatcontrolshowitdevelops,relationship,.,12,Intensivereading,P2,PleasedescribetheprocedurewhichCohenandBoyerdiscovered.,useenzymestocutoutandtoinsertandcombine,.,13,WhatisaClone?,Acloneisanorganismwhichisgeneticallyidenticaltoanotherone.,ButrememberWe=Ourgenes+Ourenvironment,Intensivereading,P3,.,14,Para.1-Para.3,Mendel,WatsonandCrick,CohenandBoyer,bothparentplantshaveinfluencedthegeneticmake-upofthenewplant,ThestructureofacidDNA,AproceduretouseenzymestounziptheDNA,tocutoutasequenceofgenesandfinallyinsertthemintothehostcellandcombinewithitsDNA,.,15,Mendel,WatsonandCrick,Boyer,Cohen,.,16,Summary:reasonsforcloning,Therearemanyvalidreasonsforcloning.Thefirstreasoniscloningcanbean_treatmentforcoupleswhofindit_tohavechildren.Anotherreasonistoreproducethetalentsof_humanbeings.Afurtherreasonistoobtaina_ofstemcells.Afourthreasonforcloningisthatsomescientistsandfarmersthinkitwouldbe_tocloneaprizecowwhichcan_bacteriaordisease,ortosowa_crop.Finally,the_researchintoDNAhashelpedsolve_.,optional,difficult,exceptional,supply,handy,resist,cloned,latest,_,P4-8,crimes,.,17,optional,contradictory,flexible,unacceptable,handy,P4-7,restrict,pressure,talents,.,18,P1(DNAandgene),P3(cloning),P8(DNAinhelpingsolvecrime),P4-7(advantagesanddisadvantages),Structureofthepassage,P2(procedure),.,19,Choosethebestanswers.,Thescienceofgeneticswasdiscoveredby_.A.MendelB.WatsonandCrickC.CohenandBoyerD.Einstein,A,.,20,2.Cloninghumansfromtheirparentshasthedisadvantagethat_.A.itisatreatmentforcoupleswhowantchildrenB.itcouldcreateanexceptionalhumanbeingC.wecannotpredictthepsychologicaleffectsD.theclonemaynotleadthesamelife,C,.,21,3.Stemcellscanbeusedto_.A.developintoenzymesB.createprizewinninganimalsC.solvecrimesD.helppeoplerecovertheirgoodhealth,D,.,22,4.Clonesofexceptionalhumanbeings_.A.wouldbeunderunknownpsychologicalpressureB.wouldhavedifferentexperiencesandupbringingfromordinarypeopleC.wouldallowustoringEinsteinbacktolifeD.mayhavedifferentcharacteristicsfromtheoriginal,D,.,23,5.Ifwecanbesurethattheembryowillnotbewasted,_.A.cloningtoobtainstemcellswouldbeacceptabletomanypeopleB.stemcellscoulddevelopintoeveryothertypeofcellinthebodyC.cloningwouldneedtobecontrolledbyavoluntarycodeofpracticeorgovernmentregulationsD.cloningcanbeusedtocreateanimalsandcrops,A,.,24,解码DNA截取一段序列的基因3.把它们插入宿主细胞4.与一样,UnziptheDNA,Cutoutasequenceofgenes,Insertthemintothehostcell,Findtheexpressions,P2-3,beidenticalto,.,25,1.正当的理由2.可供选择的治疗方法3.未知的心理压力4.选择人生道路5.与相立6.拥有新的缺点7.原有的美德,validreasons,anoptionaltreatment,unknownpsychologicalpressure,chooseapathinlife,possessnewvices,existingvirtues,P4-5,becontradictoryto,.,26,但是克隆出来的爱因斯坦选择的人生道路可和“原版”爱因斯坦的选择大相径庭。,ButanEinsteinclonemightchooseapathinlifewhichiscontradictorytotheonetheoriginalEinsteinchose.,_.,Translation,.,27,1.recoverfromadisease2.修复人体组织3.一只优选奶牛4.relyon5.限制生物品种的多样性6.在犯罪现场,repairhumantissue,aprizecow,依靠，依赖,restrictthebiodiversityofthebreed,从疾病中康复,P6-8,atacrimescene,.,28,Soonaft