查询词典 x chromosome

Objective To evaluate the relationship between Y chromosome microdeletion and male azoospermia.

目的对男性不育患者Y染色体AZF区域微缺失进行基因诊断。

Methods Detect the chromosome and serum reproductive hormones of 86 azoospermia cases and 35 normal controls.

检测86例无精子症患者与35例正常对照男性的外周血染色体、血清生殖激素(FSH、LH、T、PRL、T/LH)；分析无精子症患者的生殖内分泌激素水平的变化。

One of the serially aligned beadlike granules of concentrated chromatin that constitutes a chromosome during the early phases of cell division.

染色粒在细胞分裂早期，一条顺序排列的珠状染色质颗粒链构成了染色体

One of the serially aligned beadlike granules of concentrated chromatin that constitutes a chromosome during the early phases of cell division .

染色粒在细胞分裂早期，一条顺序排列的珠状染色质颗粒链构成了染色体染色质DNA在细胞分裂之前必须复制。

Five pairs of 45S rDNA loci and two pairs of 5S rDNA signals were detected on chromosomes of Cucurbita moschata Duch. Luffa cylindrical Roem. contained five pairs of 45S rDNA loci and one pair of 5S rDNA loci. In Benincasa hispida Cogn., two pairs of 45S rDNA sites and one pair of 5S rDNA site were detected. In this species, 5S rDNA and one pair of the 45S loci were collocated closely in chromosome 7S. 45S rDNA chromosomal distribution patterns were highly conserved among the three species, althoufh their number varied markedly. The 5S rDNA sites on chromosomes among the three species were highly polymorphic.

南瓜有5对45S rDNA位点， 2对5S rDNA位点；丝瓜具有5对45S rDNA位点， 1对5S rDNA位点；冬瓜具有2对45S rDNA位点， 1对5S rDNA位点， 5S rDNA位点与其中一对45S rDNA位点都位于7号染色体短臂上，并在物理位置上紧密相邻。45S rDNA在这3种作物染色体上数目变化较大，但在染色体上都倾向分布在短臂末端，其分布模式较为一致。5S rDNA在这3种作物染色体上数目相对保守，但在染色体上分布的位置变化较大。

Bidens parviflora chromosome number,morphological character was found clear.

结论小花鬼针草染色体的数量、形态清晰，可为进一步的深入研究打下基础。

Was in tegrated i nto plant chromosome thro ugh partially homologous recom bination mechanism. The

右边界碱基序列与植物染色体序列可以在小范围内连续相互配对，也可通过两者

One was the pqsA' positive expression plasmid constructed by cloning the pqsA'-lacZ fusion digested from pYHP441 into miniCTX-1, whose sequence was then integrated into wild type PAO-1 chromosome by biparental mating procedure. The other was pqsA-E operon knock-out plasmid whose sequence between pqsD and pqsE operon was inserted by tetracycline cassette by the site specific insertion mutagenesis strategy and the mutant constructed by biparental mating of S17-1 that harbored the plasmid and pqsA' positive expression mutant.

一种是酶切质粒pYHP441获得pqsA'-lacZ片段后，亚克隆入质粒miniCTX-1中，构建成PqsA'的阳性表达质粒，随后将构建的质粒，通过双亲交配过程整合入野生型铜绿假单胞菌株PAO-1染色体组中；另一种是通过点特异插入诱变策略，将四环素基因盒插入启动子pqsD和pqsE之间，构建的阴性质粒转化入大肠杆菌S17-1株后，和上述pqsA'阳性表达突变株进行双亲交配过程。

It is intimately involved in spindle formation and chromosome segregation during mitosis. Now, the over-expression of PLK1 has been found in various primary carcinomata, and indicated the probability of PLK1 as a new tumor marker.

近年来，研究发现PLK1（polo-like kinase 1）基因在有丝分裂过程中起重要的调节功能，并且在多种的人类肿瘤包括肺癌中发现PLK1基因表达升高，提示PLKl的增长表达在细胞的增殖中起重要作用，预示PLK1可能是一个新的肿瘤标记物。

Ligusticum 、 Cyclorhiza 、 Tongoloa 、 Carum 、 Oenanthe 、 Pternopetalum and Chamaesium were carried out. Our cytological results suggest that polyploidy did not play an important role in the chromosome evolution of Ligusticum.

报道了伞形科7属16个种的细胞学资料，并通过对藁本属已进行过细胞学研究的种类进行分析，认为多倍化在藁本属类群的演化过程中所起的作用并不明显。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。