The other is the chemical factors of bacterial mutation.

另一种是化学因素导致细菌突变。

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The development and application of bacterial mutation technique offers new tools for research on new bacterial vaccine, bacterial genetic function and genetic therapy etc.

细菌基因突变技术的开发和应用为细菌疫苗研制、细菌基因功能研究和基因治疗提供了新的技术手段。

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The bacterial mutation technique is an important bacterial research technique, including traditional physical and chemical and biological method, and modern genetic mutation technique.

细菌突变技术是重要的细菌学研究技术，包括传统的物理、化学、生物学等方法及现代的基因突变技术。

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Because existing antibiotics target specific bacterial molecules, a mutation in the bacterium can render the drugs ineffective.

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