简述获得细菌同步生长的方法。
(1)通过改变环境条件如变换温度、光线或对处于稳定期的培养物添加新的培养基等来诱导同步性;(2)通过物理学方法如选择性过滤或梯度离心从随机的、不同步的细菌群体中选择出同步的群体。
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