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1、Unit8SectionALegalandMoralImplicationsofCloningAIRFORCEUNIVERSITYOFENGINEERINGFOREIGNLANGUAGETEACHINGANDRESEARCHPRESSOurtopictodayis“Cloning”.Cloning,asitsnameimplies,isthegenetictermforproducinganexactcopyofananimalorplantbydevelopingartificiallyacellfromit.ButthebirthofDol
2、ly,amammalclone,islikesettingthecat amongthepigeons.Lead-inBackgroundInformationDolly:Dolly(July5,1996–February14,2003),aewe,wasthefirstmammaltohavebeensuccessfullyclonedfromanadultcell.ShewasclonedattheRoslinInstituteintheUnitedKingdomandlivedthereuntilherdeathwhenshewas6.I
3、dahoGemTheworld'sfirstclonedmule,wasbornonMay4.Heisanidenticalgeneticcopyofhisbrother,achampionracingmulecalledTaz,andthefirstclonetobebornintheequinefamily.CcTheworld'sfirstclonedkitten,namedCc.ItwascreatedbyscientistsinTexasusingacelltakenfromanadulttortoiseshellfemale(see
4、nextpicture).Thephoto,takenonDecember222001whenthekittenwassevenweeksold,wasmadepublicinFebruary2002.Noel,Angel,Star,Joy,MaryFiveclonedpiglets,borninVirginia,USAonMarch52000.Theworld'sfirstclonedpigletswereproducedbyPPLTherapeuticsfromanadultsowusingaslightlydifferenttechniq
5、uefromtheonethatproducedDolly.DNAdonorHowisacloned babyborn?Backgroundinformation3.What’sthedifference?Thecombinationofgenesisafundamentalbasisforhumanvariationanddiversity.Alloftheclonedchild'sgeneswouldcomefroma________.Thechildwouldbeageneticduplicateofthatexistingdonor.D
6、NAdonorWhydidthebirthofDollybecomethefocusofworldopinion?Becauseitstoodforabigbreakthroughinthegeneticengineering;Becauseitbecamepossibletoclonehumanbeings;Becauseitwasadeformedproductofscience;TipsDiscussionDiscussionWhataretheprosandconsofcloning?PROS:Produceanimalswithdes
7、irabletraits.Increasetheefficiencyofthelivestockproduction.Offsetlossesofamongendangeredspeciespopulations.Enablebetterresearchforfindingcurestomanydiseases.Providechildrenforparentswhowouldlikeachildbutcan'thaveoneforvariousreasons.Provideparentswithanopportunitytocloneachi
8、ldwhohasdied.ReferencesCONS:Declineingeneticdiversity.Takingnatureintoourow
