着丝点

The assay for infectivity in mice allows the dependence on protein sequence to be tested.

它们产生在调节转录过程的位点、装配的起始端、着丝点以及其它位置。

According to the karyology and morphology data, the present author did not agree with the opinion and supported that Metasequoia was an ancestor of Sequoia suggested by Stebbins.

不同意Schlarbaum等以红杉没有水杉的具长着丝点区域的标记染色体来否定水杉是红杉的亲本，同时认为，他们提出某种杉木属植物为红杉提供了染色体组而是它的亲本的意见难以成立，从而支持Stebbins的假设，水杉可能是北美红杉的一个亲本。

CENP-E is a microtubule-based kinesin motor protein located on the outer kinetochore and is responsible for a stable microtubule-kinetochore attachment.

有丝分裂期染色体的运动是由纺锤体微管和位于染色体着丝粒区域的一个特化的结构—动点之间程序化且动态的相互作用而协调完成的。

The metaphase plate would thus be the null point between two equal but oppositely directed and acting groups of kinetochore tubules.

中期板大概是两个相等而方向相反的放射状着丝点微管群之间的平衡点。

And the chromosome movements in mitosis are orchestrated by dynamic interactions between spindle microtubules and the kinetochore,a multi-protein complex assembled onto centromeric DNA of the chromosome.

有丝分裂过程中染色体的运动和分离又是通过纺锤体微管和位于染色体着丝粒上的动点之间的协同作用来完成的。

It was at five in the afternoon and the place was crowded with merchants, actors, managers, politicians, a goodly company of rotund, rosy figures, silk-hatted, starchy-bosomed, beringed and bescarfpinned to the queen's taste.

当时是下午5点，酒馆里挤满了商人、演员、经理、政客。满厅是脸色红润大腹便便的人群，都戴着丝礼帽，穿着浆过的衬衫，手上戴着戒指，领带上别着饰针，真是尽善尽美，无可挑剔。

If anything I may add some more foam and lead to increase her metacentric height as I fear she'll torque roll when I fit the prop and open her up.

如果有什么我可以添加一些更多的泡沫，并导致增加她的着丝点的高度，我担心她会扭矩辊当我适合的道具和开放的她。

In this study, genetic analyses were conducted to determine the genetic basis in an elite resistant inbred line Siyi with complete resistance to maize dwarf mosaic. A new genetic model, two dominant complementary genes conditioning the resistance, were found by Mendelian genetic analysis based on parents, F1, F2 and backcrosses in three successive years' field trails. The two genes were further mapped near the centromere of chromosome 3 and 6, respectively by tightly linked microsatellite markers using 242 plants from F2 generation. The resistance gene on chromosome 3 is 1.0 cM apart from the flanking markers phi053 and umc1527, respectively. Whereas the linkage distance between two flanking markers bnlg1600 and phi075 and resistance gene on chromosome 6 was 1.0 and 4.0 cM, respectively. Genotypic analysis of the plants from testcross and F3 populations supported the new genetic manners.

课题组通过连续三年的抗病鉴定，在国内种质资源中筛选出一份综合农艺性状优良、配合力较高的自交系四一，三年的表型遗传研究和两年的分子标记工作，发现四一中的玉米矮花叶病抗性是由两对显性互补基因控制的，进而利用F2作图群体，把发现的两个基因定位在第三和第六染色体的着丝点附近，并获得了双侧紧密连锁的分子标记连锁图谱，其中第三染色体上的分子标记UMC1527和phi053从抗病基因双侧逼近1 cM，而第六染色体上的分子标记phi075、bnlg1600从抗病基因双侧分别逼近4 cM和1 cM；利用B2群体、F2：3家系、BC3F1群体和带有第三、第六染色体抗病基因以及两个抗病基因的近等基因系，进一步证实了四一中成株期抗性是由两个显性互补基因控制的。

Without the help of microscope, computer etc, and lack of some related subjects such as statistics, in the initial stage of the development of karyotype analysis technique, scientists analyzed karyotype only by utilizing chromosome morphology mark length of chromosomes, arm ratio, satellites, etc.

除了通过显微镜，计算机等的帮助外，我们还需要一些相近学科方面所提供的知识，例如统计学，应用于原始期的染色体组型分析技术的发展，科学家分析染色体的组型仅仅利用染色体形态学上的标志（染色体长度，臂长比，着丝点等

The karyotype and banding patterns of the Songliao Black Pig were studied by method of peripheral blood ly-mphocytes culture and the techniques of G-,C-banding.The relative length,centromere index and arm ratio of each indi-vidual chromosome were analyzed.

采用外周血淋巴细胞培养方法以及C-显带和G-显带技术，对松辽黑猪进行了染色体组型分析及显带研究，并分析了各号染色体的相对长度、着丝点指数及臂比。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。