ryosintoidenticalcopies,atechnologythathassparkedastormofcontroversyaroundtheworld.Claimingtheybegantheexperimentstospuradebate,theresearchersgotmorethantheybargainedfor.TheVaticancondemnedthetechnologyasevil;oneGermanmagazinecalledtheresearch“immoral,”andsociologistsintheU.S.disagreedhotlyoverwhetherthetechnologyshouldbeofferedtoinfertilecouples,couplesincapableofhavingchildren.Thenewsleftpeoplewonderingwhatthetechnologyisallabout.Actuallywhattheresearchersdidwastoextendatechniquethathasbeenusedinlivestockformorethanadecade.Thephysiciansusedrubefertilizationtechnologytocreate17humanembryosinalaboratory.Whentheembryoshadgrownenoughtocontain2-8cells,theresearchersseparatedtheminto48cells.Twooftheseparatedcellssurvivedforafewdaysinthelab,developingintonewhumanembryossmallerthantheheadofapin.
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