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时间:2020-03-24
《2017沪科版高中生命科学第二册7.5《克隆技术》1.ppt》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、7.5Clone克隆技术细胞的分裂和分化克隆的定义克隆就是指不用雌、雄两性的生殖细胞,而仅仅用一个个体的部分组织或一个体细胞,通过细胞分裂和分化而产生新个体的过程。常见的克隆现象植物界:组织培养、营养繁殖低等动物:酵母菌、涡虫动物克隆技术春天把一只绵羊的腿切下来,然后插在土中,秋天就长出一只新的绵羊?高度分化的动物体细胞核具有全能性。绵羊:1996年,多利(Dolly)猕猴:2000年1月,Tetra,雌性牛:2001年,Alpha和Beta,雄性猫:2001年底,CopyCat(CC),雌性兔:2003年3-4月分别在法
2、国和朝鲜独立地实现;鹿:2003年,Dewey马:2003年,Prometea,雌性狗:2005年,韩国首尔大学实验队,史努比(Snoopy)动物克隆技术的应用克隆技术与遗传育种克隆技术与濒危生物保护克隆技术与医学动物克隆技术与伦理克隆技术不够成熟。四不原则:不赞成、不允许、不支持、不接受任何生殖性克隆人不反对治疗性克隆INSERTTHETITLEOFYOURPRESENTATIONHEREFREEPPTTEMPLATESALLPPT.com_FreePowerPointTemplates,DiagramsandChar
3、tsFreePPTTemplates-Widescreen(16:9)ThisPowerPointTemplatehascleanandneutraldesignthatcanbeadaptedtoanycontentandmeetsvariousmarketsegments.WiththismanyslidesyouareabletomakeacompletePowerPointPresentationthatbestsuityourneeds.ThisPowerPointTemplatehascleanandneutr
4、aldesignthatcanbeadaptedtoanycontentandmeetsvariousmarketsegments.WiththismanyslidesyouareabletomakeacompletePowerPointPresentationthatbestsuityourneeds.ThisPowerPointTemplatehascleanandneutraldesignthatcanbeadaptedtoanycontentandmeetsvariousmarketsegments.Withthi
5、smanyslidesyouareabletomakeacompletePowerPointPresentationthatbestsuityourneeds.ClicktoaddtitleClicktoaddtitleFreePPTTemplates-Widescreen(16:9)ThisPowerPointTemplatehascleanandneutraldesignthatcanbeadaptedtoanycontentandmeetsvariousmarketsegments.Withthismanyslide
6、syouareabletomakeacompletePowerPointPresentationthatbestsuityourneeds.ThisPowerPointTemplatehascleanandneutraldesignthatcanbeadaptedtoanycontentandmeetsvariousmarketsegments.WiththismanyslidesyouareabletomakeacompletePowerPointPresentationthatbestsuityourneeds.Thi
7、sPowerPointTemplatehascleanandneutraldesignthatcanbeadaptedtoanycontentandmeetsvariousmarketsegments.WiththismanyslidesyouareabletomakeacompletePowerPointPresentationthatbestsuityourneeds.INSERTTHETITLEOFYOURPRESENTATIONHEREFREEPPTTEMPLATESALLPPT.com_FreePowerPoin
8、tTemplates,DiagramsandChartsFreePPTTemplates-Widescreen(16:9)ThisPowerPointTemplatehascleanandneutraldesignthatcanbeadaptedtoanycontentandmeetsvariousma
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