下图为某二倍体植株花药中未成熟的花粉在适宜培养基上形成完整植株的过程。下列有关叙述正确的是
![](https://img.xkw.com/dksih/QBM/2019/4/17/2184304319275008/2184930470641664/STEM/5843d26af1874011b433cd3b0f65419d.png?resizew=439)
![](https://img.xkw.com/dksih/QBM/2019/4/17/2184304319275008/2184930470641664/STEM/5843d26af1874011b433cd3b0f65419d.png?resizew=439)
A.过程①②必须要光照 |
B.②表示脱分化过程,此过程体现了遗传信息执行情况的不同 |
C.过程①②③说明花粉细胞具有全能性 |
D.通过过程①、②、③获得的完整植株与原植株遗传特性完全相同 |
更新时间:2019-04-19 17:56:31
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【知识点】 植物组织培养技术综合解读
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【推荐1】下图是植物组织培养的一般过程,相关说法不 正确的是( )
![](https://img.xkw.com/dksih/QBM/2019/4/23/2188728249081856/2189787422449665/STEM/37c3bf13cc77413796d31f95aeb91c54.png?resizew=79)
![](https://img.xkw.com/dksih/QBM/2019/4/23/2188728249081856/2189787422449665/STEM/d9886cc0f7784043bcc799d64496a7a4.png?resizew=32)
![](https://img.xkw.com/dksih/QBM/2019/4/23/2188728249081856/2189787422449665/STEM/6419114b740e4863abf2a9f38698fae7.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2019/4/23/2188728249081856/2189787422449665/STEM/a346d67ef3524cc9b79636d258a206c0.png?resizew=32)
―→![](https://img.xkw.com/dksih/QBM/2019/4/23/2188728249081856/2189787422449665/STEM/2f38fad4a64647a594ed2b0bade9d058.png?resizew=51)
![](https://img.xkw.com/dksih/QBM/2019/4/23/2188728249081856/2189787422449665/STEM/37c3bf13cc77413796d31f95aeb91c54.png?resizew=79)
![](https://img.xkw.com/dksih/QBM/2019/4/23/2188728249081856/2189787422449665/STEM/d9886cc0f7784043bcc799d64496a7a4.png?resizew=32)
![](https://img.xkw.com/dksih/QBM/2019/4/23/2188728249081856/2189787422449665/STEM/6419114b740e4863abf2a9f38698fae7.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2019/4/23/2188728249081856/2189787422449665/STEM/a346d67ef3524cc9b79636d258a206c0.png?resizew=32)
![](https://img.xkw.com/dksih/QBM/2019/4/23/2188728249081856/2189787422449665/STEM/c7edd9f2c857499eaed9c07c7d660a67.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2019/4/23/2188728249081856/2189787422449665/STEM/2f38fad4a64647a594ed2b0bade9d058.png?resizew=51)
A.过程a指的是脱分化,过程c指的是再分化 |
B.此技术依据的原理是植物细胞的全能性 |
C.若用此技术进行细胞产物的工厂化生产,须将细胞培养到d阶段才行 |
D.生长素含量高时,有利于根原基的形成 |
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【推荐2】下图是对基因型为Aabb的玉米所作的处理,据图分析下列叙述错误的是( )
![](https://img.xkw.com/dksih/QBM/2021/5/8/2716709167284224/2741360383123456/STEM/5d12f6db0a5a433883c5875d3ea7f667.png?resizew=238)
![](https://img.xkw.com/dksih/QBM/2021/5/8/2716709167284224/2741360383123456/STEM/5d12f6db0a5a433883c5875d3ea7f667.png?resizew=238)
A.过程a所采取的技术手段是花药离体培养 |
B.过程b用秋水仙素处理后可以得到4种基因型的玉米 |
C.c和d分别是脱分化和再分化过程 |
D.图中过程a或过程c、d能够说明植物细胞具有全能性 |
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