回复突变;回交突变
Methods Ames test was conducted with rat liver S9 metabolic activation system ( S9-mix) induced by Compound Danshen Dripping Pills at different doses, and the amounts of reverse mutation induced by 2-AAF were compared between groups with different S9-mix.
方法将复方丹参滴丸不同剂量诱导处理后的大鼠肝S9作为代谢活化系统进行Ames试验,比较加入S9前后2AAF对鼠伤寒沙门氏菌的回复突变率。
Then at the 6 point will lead to a higher pregnancy rate. The reverse mutation frequency of the protoplast of the auxotrophic mutants was less than 10  ̄(-6).
营养缺陷型菌株原生质体回复突变率小于10 ̄(-6)。
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