Results of Ames test showed that number of colony with back mutation(revertants)in varied strains of Salmonella typhimurium at different doses did not exceed the double of the number of those with spontaneous mutation.
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释义
Ames实验显示各菌株的各剂量组的回变菌落数均未超过自发回变菌落数的 2倍。
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