Deletion and mutation of CTCF is associated with cancer.
CTCF的缺失和突变可能导致肿瘤的发生。
Deletion mutation state of the two groups of mitochondria DNA were detected by PCR technology and photodensity scan.
采用聚合酶链反应（PCR）技术和光密度扫描检测两组线粒体DNA的缺失突变情况。
Objective: to detect allelic deletion and mutation of FHIT gene in gastric cancer, and to analyze the role of the abnormalities in the carcinogenesis of gastric cancer.
目的：检测脆性组氨酸三联体基因在胃癌组织中等位基因缺失和突变情况，分析该异常在胃癌发生中的作用。
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