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本文应用免疫标记技术，在大鼠肠癌细胞上进行P21ras，P53基因的电镜水平的定性和定位研究，兹报道如下。材料和方法一、实验材料：l．50只Sprague－Dawley大鼠；2．＿甲肽：上海试剂厂产品；3．p21，p53基因均为美国Sino生物公司产品；4．胶体金：本电镜室制备。二、实验方法
In this paper, the immunohistochemical technique was used to perform the qualitative and localization studies on the P21ras and P53 genes in rat colon cancer cells. Here we report here. Materials and Methods First, experimental materials: l. 50 Sprague-Dawley rats; 2. _ Peptide: Shanghai Reagent Factory product; 3. The p21 and p53 genes were all products of the Sino Sino Bio Inc.;4. Colloidal gold: This electron microscope room preparation. Second, the experimental method