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chromosomal相关的网络例句

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The frequency of cells with univalent at MI and with lagging chromosomes and chromosomal bridge at A I in PMC of F1 hybrids of 4 alloplasmic 1BL:/1RS and non-1BL/1RS wheat male sterile lines with Aegilops kotschyi,Ae. variabilis,Ae.ventricosa and Ae.bicornis cytoplasms were systematically investigated,and the relationship between FCU at M I,FCLB at A I and F1 selfed seed set was analyzed.

系统调查了4类异质(粘果、易变、偏凸、二角山羊草细胞质)1BL/lRS、非1BL/1RS小麦雄性不育系与其恢复系杂种F减数分裂中期Ⅰ出现单价体细胞频率,以及后期Ⅰ出现落后染色体和染色体桥细胞频率,并对中、后期染色体变异率与杂种F自交结实率进行了相关分析。

To evaluate the application of amniocentesis in prenatal diagnosis of fetal chromosomal abnormalities.

目的 评价羊膜腔穿刺术在产前诊断胎儿染色体异常中的应用。

Chromosomal disorders occur in 0.5% of births; many can now be diagnosed before birth by amniocentesis.

新生儿得到染色体疾病的比率是0.5%;现在有许多染色体疾病可在胎儿出生前透过羊膜穿刺术检查出来。

Chromosomal abnormalities were identified in two anencephalic fetuses. One was trisomy 21, another was mosaic of diploid and tetraploid.

1。组织病理学和超微病理发现,NTDs胎儿在脑和脊髓以及重要脏器如肝、肾等发育有异常,主要表现在发育滞后和某些成分的缺如。

Results\ The ratios of chromosomal abnormalities in seven phenotype populations were as following: chronic granulocytic leukemia 91 0%; acute nonlymphocytic leukemia 46 50%; mental retardation 27 78%; male with complete aspermia 24 27%; women of...

结果在 7个不同表型群体中染色体异常比率分别为:慢粒组 91.0 0 ,急非淋组 46 。5 0 ,智力低下组 2 7.78,无精子组 2 4.2 7,女性矮小或原发闭经组 2 1.6 2 ,习惯性流产组 2 。0 5 ,生育先天缺陷儿组 0。

Using a 3H-labelled 7.3kb fragment of 18S and 28S rRNA g enes as a probe and by chromosomal in situ hybridization,it was demonstrated tha t the autoradiographic silver grains to be located along entire p+ part of the m arker chromosome.

应用3H标记的7.3kb长的rRNA基因探针进行染色体原位杂交,自显影银颗粒沿整个p+区域分布,p+上的银颗粒数是正常近端着丝粒染色体短臂上银颗粒平均数的5倍。

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。

In this paper,the authors summarize studies on the origin of Boehmeria and advances in the study of genetic relationships of Boehmeria using morphological, chromosomal, isozyme and DNA marker techniques. The authors also put forward the future direction.

本文概述了苎麻属植物的起源中心以及植物形态学、染色体、同工酶与DNA分子标记等研究方法在苎麻属植物亲缘关系的研究进展,并对今后开展这方面研究提出了几个重要问题。

Carcinomatous changing of normal cells result from the accumulation of genetic alterations at specific chromosomal regions involving a multistep process.

正常细胞的癌变是多因素、多阶段及多基因作用的结果。

The presence of the t(15;19) chromosomal translocation in the chondroid component was confirmed by fluorescence in situ hybridization analysis and immunohistochemical staining, indicating mesenchymal transdifferentation of the tumor.

荧光原位杂交实验和免疫组化染色证实其软骨样成分发生了t(15;19)染色体易位,由此表明该例肿瘤发生了间叶组织转分化。

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