查询词典 cuspidal locus

ABSTRACT In many flowering plants, self-incompatibility is a genetic mechanism to prevent self-fertilization and, in most cases, is controlled by a single multiallelic S locus.

自交不亲和性(self-incompatibility，SI)是高等植物特有的一种自我识别机制，它可以防止近亲繁殖，增加遗传变异。

METHODSThe allele frequencies of the DXS6854 locus in 101 of female and 160 of male with no sibship, in the Korean??Chinese in Yanbian area were analyzed by PCR and polyacrylamide gel electrophoresis.

方法］采用PCR扩增技术及聚丙烯酰胺凝胶电泳方法，分析101名朝鲜族女性和160名朝鲜族男性个体的DXS6854 STR基因座等位基因频率。

METHODSThe venous blood with no sibship was taken from 261 cases (160 of male, 101 of female ) of KoreanChinese in Yanbian area, and the analysis of DXS7132 short tandem STR locus was performed by using PCR, polyacylamide gel electrophoresis and silver staining.

方法］选择261名(男性为160名，女性为101名)延边地区朝鲜族无血缘关系的个体静脉血，提取DNA，经PCR扩增、聚丙烯酰胺凝胶电泳及银染显色等，对朝鲜族人群DXS7132基因座的基因多态性进行分析。

METHODSThe venous blood with no sibship was taken from 294 cases (187 of male, 107 of female) of KoreanChinese nationality.The DXS9898 short tandem STR locus was performed by using the techniques of PCR, polyacylamide gel electrophoresis and silver staining.

方法］随机抽取294名延边地区无血缘关系的朝鲜族个体，其中男性为187名，女性为107名，采集静脉血，提取DNA，行PCR扩增，变性聚丙烯酰胺凝胶电泳及银染显色，行遗传基因多态性分析。

The network itself, freed of the control of broadcasters and other bandwidth owners, becomes the locus of a new system of distribution, based on association among peers without hierarchical control, which replaces the coercive system of distribution for all music, video, and other soft goods.

网络本身也摆脱了播音员和其他频带所有者的控制，为一种新的分配体系提供了场所；不存在层级控制的友侪间的合作，取代了音乐、影像等软产品的强制分配体系，成为这种新体系的基础。

Moreover, on the free surface of the lake in Stephen's green amid inverted reflections of trees her uncommented spit, describing concentric circles of waterrings, indicated by the constancy of its permanence the locus of a somnolent prostrate fish.

而且，她连招呼也没打一声就朝着"斯蒂芬草地"那浩森的湖面上啐了一口，唾沫浮在一棵棵树的倒影之间，划下一圈圈同心圆的波纹，持久而凝然不动，以一条人睡般平卧着的鱼为记号。

The genic polymorphism is that there are two or more genotypes in the same locus of chromosome in the group of random mating. It is an important factor to determine the susceptivity of desease, the diversity of clinical symptom and the reaction of medication.

所谓基因多态性是指在一随机婚配的群体中，染色体同一基因座位点上有两种或两种以上的基因型，它是决定人体对疾病易感性、临床表现多样性及药物治疗反应差异性的重要因素。

This result suggests that cytomixis occurred at synizesis stage may produce some kind of stress which results in activation of retrotransposon to insert into a new locus, or/and breakage rearrangement at the site of retrotransposon in genomic DNA, that both can be detected by fingerprinning.

分析认为在兰州百合减数分裂前期Ⅰ的凝线期时，由于染色质的胞间运动造成对基因组DNA的胁迫，导致了逆转座子del的激活，所插入的位点序列即为所检测到的特异片段；或者是由于染色质的胞间运动造成染色体的断裂重排。

Theorem 3: the gradient of any point in the locus of foot point of the perpendicular line and the tangent line of the cylindrical spiral is , namely one-order tensor field.

定理3 由坐标原点至圆柱螺线的切线所引垂线的垂足轨迹上任一点的梯度为，即为一个一阶张量场。

Results showed that there was a significant three-way interaction among goal levels, feedback information and locus of control.

研究结果显示，在数学工作表现方面，当受试者倾向内控，无论是接受明确且困难目标或是回馈讯息时，都会有较佳的数学工作表现。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。