克隆(英语PPT精华版)课件.ppt

克隆(英语PPT精华版)课件.ppt

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时间:2020-08-18

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1、Clone,supportoroppose?Keywordssomatic(adj.)躯体的;肉体的;体壁的cell(n.)细胞asexual(adj.)[生物]无性的;无性生殖的genotype(n.)基因型;遗传型offspring(n.)后代,子孙;产物upsurge(n.)高潮,高涨Keywordsdispute(n.)辩论;争吵;争议regulate(vt.)调节,规定;控制relevant(adj.)有关的briefintroductionCloningreferstothebiologythroughthesomaticcellofasexualr

2、eproduction,andformedbyasexualreproductiongenotypeexactlythesameindividualoffspringofpopulation.Clonesheep"Dolly"wasbornAsweallknow,in1996theBritishscientistsmadeuseofanadultsheepsomaticcellsuccessfullyclonedalamb,Dolly.cloningresearchupsurgeAlongwithclonesheep"Dolly"wasborn,thewhole

3、worldstartedacloningresearchupsurge,subsequently,reportsofclonedanimalsappearedcontinuously.ThepointofviewsaboutcloneAtthatmoment,theresultimmediatelywasregardedasthemostimportantandpromisingtechnologybreakthrough,andthebenefitsofthisbreakthroughisobvious.Atthesametime,disputesalsofo

4、llowed.ThestandpointsofthegovernmentsExpertsthink,animalcloningtechnologyisasuccessofscientificresearchonamajorevent,itbothhasadvantagesanddisadvantages,measuresmustbetakentoregulate,strictlycontroltheharmfulside,makethetechnologytobenefitthehuman.ThestandpointsofthegovernmentsTheref

5、ore,Governmentsissuedtherelevantpolicies.TheUnitedStates,Germany,France,England,Canadaandothercountrieshaveestablishedtheexpertgroupstudythisproblem,allcountrieshavethesameviewthatmadelawstostrengthenthemanagementofthistechnology,anditisstrictlyforbiddentouseitforcloninghuman.Thestan

6、dpointsofthegovernmentsNovember11,1997,theUnitedNationssignedthedocumenttoopposetheuseofcloningtechnologybreedingpeople,includingChina.OnJanuary12,1998,19countriesoftheEurop,signedanagreementtostrictlyprohibitedhumancloning.ThestandpointsofthegovernmentsAlmostallcountriesthink,ifallo

7、wedtheexistenceofhumancloning,theyandwewillbeidenticalliketwins,evenmoresimilar,butitwasagainstethical.MypositionScienceandtechnologyisadouble-edgedsword,soiscloning.Itcanbringusbenefits,disaster,too.Thereisnodoubtthatcloningisagreatachievement,butwehavetoberationaltouseit.Wecanapply

8、ittoourmedic

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