除了性染色体外,大多数细胞的染色体组成对出现,称同源染色体对。
结论:染色体核型为45,XO个体大部分分化为女性,但少数可能向男性分化。
方法采集患者外周血进行培养,常规制片后G显带染色体核型分析。
尽管有许多学者报道了水稻核型的研究结果,但不同学者之间的分歧依然存在。
采用胚胎法和外周血淋巴细胞培养法制备染色体标本,对鸡与鹌鹑属间杂交种染色体核型进行了研究。
如此大量的结构异染色质的来源及其在染色体组型进化和物种形成中的任务仍是一个谜。
结论:染色体核型异常和Y染色体微缺失均与无精子症和严重少精子症的发生有关。
方法按常规方法收获外周血淋巴细胞及制片,G显带后分析染色体核型。
方法采用人外周血淋巴细胞培养,常规G显带技术进行核型分析。
细胞碱性磷酸酶染色呈强阳性,为二倍体核型,可形成类胚体。
然而,癌细胞及较不受人瞩目的前驱癌细胞,却是大自然「核型稳定定律」恶名昭彰的违反者。
染色体核型分析是遗传学研究的重要手段,也是物种分类和鉴定的基本依据。
方法:对43例智力低下和发育异常的患者进行外周血染色体分析。
重点综述了染色体核型分析和单染色体显微切割技术的操作规程。
1·The results indicated that it is more stable and reliable for karyotype analysis based on areas than on lengths.
表明以面积为依据较传统的以长度为依据的核型分析可能更加稳定可靠。
2·An amniocentesis revealed normal karyotype (46, XX).
羊水诊断核型正常(46,xx)。
3·Methods Chromosome specimens were prepared by short term culture of bone marrow cells and karyotype analyses were carried out using R and G banding techniques.
方法应用骨髓细胞短期培养法制备染色体标本,并应用R和G显带技术进行核型分析;
4·In this paper, based on average Eucli dean distance coefficient, using UPGMA, Q cluster analysis for karyotype of 12taxa in genes glycyrrhiza L. have been conducted.
在平均欧氏距离系数基础上,运用UPGMA法,对甘草属12个类群的核型资料进行了Q型聚类分析。
5·There were no abnormal karyotype in bone marrow cells.
骨髓细胞无异常核型。
1·The karyotype and C banding of Haimen White goat breed were investigated with the peripheral blood lymphocyte culture and chromosome banding techniques.
采用外周血淋巴细胞培养及染色体分带技术,分析了海门白山羊的染色体核型与C-带。
2·Objective To explore the methods of karyotyping and G-banding of Schistosoma japonicum chromosomes and analyse the characteristics of the karyotype and G-banding pattern.
目的探索日本血吸虫染色体的制作及其G带显带方法,进一步分析其染色体核型和G带带型特征。
3·In this paper, chromosomal karyotype of Wushen horse in Inner Mongolia was studied by using the peripheral blood lymphocytes culture method and conventional chromosome analysis techniques.
采用外周血淋巴细胞培养方法和常规染色体制备技术,对内蒙古乌审马染色体核型进行了分析研究。
4·The karyotype and C-banding of XuHuai White Goat breed were investigated with the peripheral blood lymphocyte culture and chromosome banding techniques.
采用外周血淋巴细胞培养及染色体分带技术分析了徐淮白山羊的染色体核型、C带。
5·Peripheral blood karyotype does not necessarily reflect gonadal type.
外周血染色体核型并不足以预示性腺的成份。
1·The origin of such large amounts of constitutive heterochromatin and their role in karyotype evolution and speciation remain a mystery.
如此大量的结构异染色质的来源及其在染色体组型进化和物种形成中的任务仍是一个谜。