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日期：2010-10-03 10:03
embryos(胚胎)，000pandasleftintheworld，semenandDNAofendangeredanimalsandstoringtheminliquidnitrogenIfcertainspeciesshouldbecomeextinct，aprofessorinTexasA&M’sCollegeofVeterinaryMedicine，isindangerofbecomingextinctinthenext25yearsThisweek，ChinesescientistssaidtheygrewanembryobyintroducingcellsfromadeadfemalepandaintotheeggcellsofaJapanesewhiterabbitTheyarenowtryingtoimplanttheembryointoahostanimalTheentireprocedurecouldtakefromthreetofiveyearstocomplete“Thenucleartransfer(核子移植)ofonespeciestoanotherisnoteasy，birdsreptileswillbecomeextinctinover100yearsThepanda，DrDuaneKraemer，(1)Withonlyabout1，Chinaisdesperatelytryingtoclone(克隆)theanimalandsavetheendangeredspecies(物种)That’samovesimilartowhataTexasA&MUniversityresearchershavebeenundertakingforthepastfiveyearsinaprojectcalled“Noah’sArk”Noah’sArkisaimedatcollectingeggs，nativeonlytoChina，saystherewouldbeenoughofthebasicbuildingblockstoreintroducethespeciesinthefutureItisestimatedthatasmanyas2，000speciesofmammals，andthelack，
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