大学英语作文2100字:反对克隆的原因和赞同克隆的原因.doc
文档介绍:大学英语作文2100字:反对克隆的原因和赞同克隆的原因本文从网络收集而来,上传到平台为了帮到更多的人,如果您需要使用本文档,请点击按钮本文档有偿,另外祝您生活愉快,工作顺利,万事如意! 反对克隆的原因和赞同克隆的原因,还要有自己的观点 westhusinseperiencewithcloninganimalsleaveshimupsetbyallthistalkofhumancloning.inthreeyearsofworkonthemissyproject,usinghundredsuponhundredsofdogseggs,thea mteamhasproducedonlyadozenorsoembryoscarryingmissysdna.nonehavesurvivedthetransfertoasurrogatemother.eptablewhenyouredealingwithcatsorbulls,heargues,butnotwithhumans.“cloningisincrediblyinefficient,andalsodangerous,”hesays. evenso,mercialopportunity,withaniceresearchpayoff.eversincedollythesheepwasclonedin1997,westhusinsphonehasbeenringingwithpeoplecallinginhopesofduplicatingtheircatsanddogs,cattleandhorses.“alotofpeoplewanttoclonepets,especiallyifthepriceisright,”sayswesthusin.costisnoobstacleformissysmysteriousbillionaireowner;hesputup$millionsofartofunda msresearch. contrarytosomemediareports,missyisnotdead.theownerwantsatwintocarryonmissysfinequalitiesaftershedoesdie.theprototypeis,ounts,athletic,good naturedandsupersmart.missysmasterdoesnotepectaneactcopyofher.heknowsherclonemaynothavehertemperament.inastatementofpurpose,missysownerandthea mteamsaytheyare“bothlookingforwardtostudyingthewaysthatherclonesdifferfrommissy.” besidescloningagrea内容来自淘豆网www.taodocs.com转载请标明出处.