查询词典 mutation

The experiments of cross and back cross showed that these mutations were belonged to recessive mutation of nucleus gene and controlled by a recessive monogene.

通过正反交试验表明，大豆叶绿素缺失突变属于核基因隐性突变，而且是由一隐性单基因所控制的。

The results showed that there was a mutation of A → G in BMPR-IB gene in Cele sheep,Duolang sheep,Chinese Merino monotocous line and Hu sheep,which were the same as in Booroola Merino ewes.

结果表明，在策勒羊、多浪羊、中国美利奴羊多胎类型和湖羊等品种中都存在和Booroola Merino羊相同的BMPR-IB基因的突变(A746G)，而在中国美利奴羊中没有发现相应的突变。

The expression of P53 gene suggests that its mutation is associated with the malignant transformation in ovarian mucinous neoplasms.

在卵巢粘液性肿瘤由良性向恶性转化过程中，P53蛋白的表达，提示了P53基因突变参与了这一转化过程。

Results Multiple little cystic mutation area and multilocular cyst are the characteristic imageology appearance of USL.

结果多发性小囊状突变区或多房性囊性肿块为肝未分化肉瘤影像学较特征性表现。

Methods HPRT gene mutation frequency was examined by the technique of multinuclear cell assay.

应用多核细胞法检测外周血淋巴细胞HPRT基因突变率。

Methods Multinuclear cell assay was used to investigate the frequency of hprt locus mutation both in normal healthy people and malignant tumor patients prior to and after radiotherapy with a cumulative dose of 54~72Gy.

采用多核细胞法研究肿瘤患者及其接受放疗后外周血淋巴细胞HPRT基因位点的突变频率，并与正常人群进行对比。

Keywords HPRT gene mutation;nasopharyngeal carcinoma;multinuclear cell assay

HPRT基因突变；鼻咽癌；多核细胞法

Methods Through comet assay and observing mutation frequency of HPRT gene, frequencies of micronuclei and multinucleate cells, chromosome analysis, we researched the hereditary toxicity of DU and protection of DMSO.

采用彗星实验、HPRT基因突变检测、微核多核及染色体分析研究贫铀的遗传毒性作用及DMSO对其毒性的抑制作用。

This paper reviews the mechanism of mutation breeding in space, mutagenic characteristics, its effect on plants, and carries out analysis and prospect on the existing problems.

综述了航天育种的诱变机理、诱变特点及对植株的影响，并着重对存在的问题进行了分析和展望。

In order to improve the search efficiency, a novel mutative scale hybrid mutation operator is designed. The convergenc, stability, and complexity of the algorithm are analyzed.

为了提高搜索效率，将变尺度引入到混合变异中，设计了一种新型的变尺度混合变异算子，并对算法的收敛性、稳定性和复杂度进行了分析。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。