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将培养至对数期的Ag8.653小鼠骨髓癌细胞经裂解、抽提、RnaseA处理和纯化,获得A260nm/A28nm,为2.013、电泳为一条区带的纯化的小鼠骨髓瘤细胞全DNA;该DNA经不同处理,标记两个探针,即全DNA通过缺口转移法,用‘中标记和全DNA用光敏生物素(军事医学科学院二所提供)标记?
Ag8.653 mouse bone marrow cancer cells cultured to the logarithmic phase were lysed, extracted, treated with RnaseA and purified to obtain A260nm / A28nm, which was 2.013. The purified DNA of mouse myeloma cells was electrophoresed into a band. The DNA is processed differently and two probes are labeled, ie, the whole DNA is nicked by the gap-transfer method and labeled with the ’middle’ marker and the whole DNA with the biotin (provided by the Military Academy of Medical Sciences)?