gene deletion mutation 基因缺失突变
This can occur through a mutation in the gene's DNA sequence or through deletion of the gene.
这种缺失可能起源于基因的突变或者通过基因序列的缺失而产生。
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。
It is also improved M and NS genes by a site mutation and a gene deletion method.
通过点变异和基因删除方法对M和NS基因进行改进；
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