“counter selection”的概念、定义、翻译、参考文献-科学参考

单词	counter selection
释义	counter selection Encyclopedia 理学上位分析释 counter selection反向选择将反向选择标记基因导入受体细胞，在一定的筛选条件下，带有反向选择标记基因的细胞株不能生长，而不带有反向选择标记基因的细胞株则能够生长，从而对目的基因的转化子进行无选择标记的筛选。
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