Substances obtained by means of nuclear transformation.

用原子核变换方法获得的物质。

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Incorporation of a selectable marker gene during chloroplast genetic transformation is essential to obtain transformed chloroplasts, which is the same as nuclear transformation.

与核遗传转化相同，叶绿体遗传转化研究需要有合适的选择标记作为辅助手段。

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But the same as nuclear transformation, plastid transformation also has the problems of bio-safety of antibiotic markers and development obstacles due to the overexpression of foreign gene.

但同细胞核转基因一样，叶绿体转基因也存在抗生素标记的生物安全性和外源基因的过量表达对植物正常生长发育的影响的问题。

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Only after the cost of generation and storage of renewable energy matches the cost of on-demand generation from fossil, nuclear and hydro we will we see a transformation of the energy industry.

FORBES: Storage, Not Generation, is the Challenge to Renewable Energy