CloningandDNACloningandDNAPartWhatisDNA?Reading:Whatisaclone?DNAisatransparenttwistingladdermadeofthefundamentalcomponentsoflife.Whatiscloning?CloningtakestheDNAfromasinglecelltocreateawholenewindividual.Acloneisanorganismwhichisgeneticallyidenticaltoanotherone.atransparenttwistingladder透明的双螺旋结构madeofthefundamentalcomponentsoflifeDNAthestructureofDNAtherelationshipbetweenDNAandgeneGeneispartofDNAthatcontrolshowitdevelopsrelationshipWhatisaClone?Acloneisanorganismwhichisgeneticallyidenticaltoanotherone.ButrememberIt’snotjustyourgenesthatcreatewhoyouare.It’syour……aswellWe=Ourgenes+family+societyReadingReading:Thethreestagesofthedevelopmentofthescienceofgeneticsandcloning:In1866In1953In1973Mendelfirstrecordedresultsofgrowingpeaplants.WatsonandCrickdiscoveredthestructureoftheacidDNA.CohenandBoyerdiscoveredtheproceduretounziptheDNA.PleasedescribetheprocedurewhichCohenandBoyerdiscovered.useenzymestocutoutandtoinsertandcombinetounziptheDNAasequenceofgenesthemintothehostcellwithitsDNA植入解开aseriesofDiscussion:Whatwouldyouliketoclone?In1997thefirstmammalDollywascloned.ReadinganddiscussionReasonsTohavechildrenToclonetalentsTogetstemcellsTocloneanimalsandcropsAnti-humanityrestrictingbiodiversityAnevilEinsteinPsychologicalpressureAnItaliandoctorwantstooffercloningasanoptionaltreatmentforcoupleswhofinditdifficulttohavechildren.Readinganddiscussionanyonewhowasacloneofoneoftheirparentswouldbethroughouttheirchildhood.underunknownpsychologicalpressureButcouldhelpsomeonerecoverfromadisease,repairhumantissue,orhelpthemwalkagainafteranaccident.Thesestemcellswouldneedtocomefromanembryotakenfromthecloneofsomeone.Buttheembryowouldthenbewasted,______________________________________________________Readinganddiscussionwhichmanypeoplefindunacceptable,becausethatisanti-humanity.StemcellsSomescientistsandfarmersthinkitwouldbehandytoclone,forexample,acowwhichcanresistbacteriaordisease,ortosowaclonedcropwhichcanresistrotorpests.But______________________________________________________________________Readinganddiscussiontorelyonafewclonedanimalsorcropswouldrestrictthebiodiversityofthebreed.BringsomefoodsecurityproblemsAndbreakthebalanceofthenature.Yourvoicetechnicalterms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biodiversityidenticalcontroversialoptionalexceptionalcontradictoryoriginalflexiblevoluntarycompulsoryhandytransparentvalidWecanbe_____aboutyourstartingdate.(n.)InBritain,educationis____betweentheages5and16.Thissystemis_____totheoneusedinFrance.Woodworkwasan___subjectatourschool.Richardisan____student.Maxwellsonbecamea_____figureintheworldofbigbusiness.Yourreturnticketis____forthreemonths.possess,resist,relyon,restrict.cutout,insert,Havingsmallchildrentendsto____yourfreedom.Icannot_____chocolate.Thepolicewentthroughallthedeadgirl's_____.Readthepassageandfindtheparagraphswhichdescribe:1.whenthestructureofDNAwasdiscovered2.howtoclonesomething3.fourpossiblereasonsforcloning4.thedisadvantagesofcloning5.theresearchintoDNAhashelpedsolvecrime6.CohenandBoyerdiscoveredaprocedureP1P3P4-7P4-7P8FastreadingP2P1(DNAandgene)P3(cloning)P8(DNAinhelpingsolvecrime)P4-7(advantagesanddisadvantages)StructureofthepassageP2(procedure)I’mJ.D.WatsonI’mF.CrickIn19531866Hi!I’mMendel,andafterrecordingtheresults,Ithinkboththeparentplantscaninfluencethegeneticmake-upoftheplant.IntensivereadingP2PleasedescribetheprocedurewhichCohenandBoyerdiscovered.useenzymestocutoutandtoinsertandcombinetounziptheDNAasequenceofgenesthemintothehostcellwithitsDNA植入解开aseriesof…an________treatmentforcoupleswhocan’thavechildren…reproducethe________ofexceptionalhumanbeings…obtainstemcellsinembryoswhicharevery__________andcandevelopintoeveryothertypeofcell…sufferfromunknownpsychological_________…be_____________totheoriginalonemanypeoplefindthewastedembryo______________…be________tocloneaprizecowresistingbacteriaordisease…would____________thebiodiversityofthebreedoptionalcontradictoryflexibleunacceptablehandyAdvantagesDisadvantagesP4-7restrictpressuretalentsOh,myGod!Debatecloning“Cloningtechnologyisadouble-edgedsword.”Writeacompositionaboutyourunderstandingoftheabovesentence.Homework
