查询词典 chromosome

Objective To evaluate the frequency of microdeletions in the long arm of Y chromosome of idiopathic infertile males with azoospermia and oligospermia in Xinjiang province in China and to investigate the difference of Y microdeletion frequencies between two nations.

目的评估新疆地区汉族、维吾尔族不明原因无精子症和严重少精子症男性患者Y染色体长臂微缺失的频率，探讨不同民族间Y染色体长臂微缺失发生率的差异。

In conclusion, these results suggested that (1) the ageing-associated decline in fertility of female KM mouse was due to a decrease in both quantity and quality of oocytes;(2) the ooplasm from young mice did not correct the meiotic errors of aged mice, and the ooplasm from aged mice did not induce abnormal segregation of meiotic chromosome of young mice, indicating that meiotic anomalies found in the oocytes of aged mice might be related to nucleus or chromosomes and relevant factors;(3) a critical nucleocytoplasmic ratio was essential for normal maturation and segregation of meiotic chromosomes of oocytes and development to 2-cell embryos.

本研究结果表明：（1）昆明白小鼠与衰老相关的生育力下降是其卵母细胞数量减少和质量下降的综合结果；（2）年轻小鼠卵母细胞细胞质不能纠正老龄小鼠GV的减数分裂错误，老龄小鼠卵母细胞细胞质也不诱导年轻小鼠的GV发生减数分裂错误，老龄小鼠卵母细胞减数分裂异常很可能与细胞核或染色体及其相关因素有关；（3）关键的核质比对卵母细胞正常的成熟、减数分裂染色体分离及2-细胞期胚的发育是绝对必需的。

RFLP genetic linkage map of wheat recombinant inbred lines derived from W7984 Opata,was used to study QTL of 33 traits associated with water use efficiency.Compared with QTL map of 7 group homeologues chromosomes,the results were showed as follows:nearby the centromeric region of 1A and 1B chromosome,the gene cluster of controlling photosynthetic and root traits were located.

我们利用W7984 Opata重组近交系的RFLP作图群体，对33个与小麦水分利用效率有关的性状进行了QTL遗传图谱比较分析，结果显明：在第一部分同源群染色体（1A，1B）上的着丝粒周围，分布有控制光合作用和根系特性的基因簇。

The polymorphy of fronds and chromosome number of Ophioglossum petiolatum Hook.

有梗瓶尔小草叶的多形性和染色体数目。

The polymorphy of fronds and chromosome number of Ophioglossum petiolatum Hook.

标题 有梗瓶尔小草叶的多形性和染色体数目。

Follicular oocytes had developed to the stage of GV, GVBD, M I, MII after 0 h, 4 h, 14 h and 24 h of culture, respectively, judged by morphological cretirea of oocyte chromosome stained with orcein.

根据地衣红染色，对山羊卵母细胞的核染色体的形态观察发现，直径为2-3mm的卵泡其卵母细胞在体外分别培养0、4、14和24小时即可发育到GV、GVBD、MⅠ、MⅡ期。

The chromosome numbers of 12 species in Orchidaceae from China.

标题 十二种国产兰科植物的染色体数目。

The chromosome numbers of 12 species in Orchidaceae from China.

十二种国产兰科植物的染色体数目。

He chromosome numbers of 12 species in Orchidaceae from China.

itle 十二种国产兰科植物的染色体数目。

This experiment first studied in the mature nutrient medium to increase the hormone to the porine ovocyte in vitro mature process in the chromosome configuration and the mature rate influence, by explored the porine ovocyte in vitro mature rule, enhanced in vitro raise maturity, was the ROSI technology system preparation high quality ovocyte; Then has carried on the experiment in view of the porine round sperm cell in vitro separation, through to the ROSI operation and ICSI (Intracytoplasmic sperm injection, the comparison which ICSI) operated studies has affected the ROSI operation the factor.

本试验首先研究了成熟培养液中添加激素对猪卵母细胞体外成熟过程中染色体构型和成熟率的影响，以探索猪卵母细胞体外成熟规律，提高体外培养成熟度，为ROSI技术体系准备优质卵母细胞；然后针对猪圆形精细胞的体外分离进行了试验，进而通过对ROSI操作和ICSI(Intracytoplasmic sperm injection，ICSI)操作的比较研究了影响ROSI操作的因素。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！