全部

1·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。

2·The deletion mutation and missense mutation of COL7A1 gene result in the specific mutation in patients with clinical symptoms.

结论COL7A1基因的缺失突变和错义突变引起该患者临床症状的特异突变。

3·Objective To generate rescued viruses with deletion mutation of capsid protein from dengue virus type 2 isolated in China (DEN2-43).

目的制备登革2型病毒中国分离株(DEN2 - 43)的衣壳蛋白缺失突变病毒。

4·Conclusion: This new method of DNA sequence deletion mutation is simple and accurate. It could avoid new mutation in PCR process of traditional DNA manipulation method.

结论：该方法操作简单、精确，能够避免引入新突变，为DNA序列的缺失突变提供了一种新方法。

5·Most of the chlorophyll deletion occurred in M1 were belonged to somatic mutation or caused by radiation injury so that they usually were not inheritable.

在M_1所产生的叶绿素缺失中，大多数属于体细胞突变，或是由于辐射损伤所致，一般是不能遗传的；

6·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。

7·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。

8·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。

9·DNA damage caused by many factors may lead to missense mutation, deletion or illegal recombination.

多种因素可以引起DNA损伤而最终导致基因产生错义突变、缺失或错误重组。

10·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；