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chromosome breakage
相关语句
  染色体断裂
     It showed very significant difference in the rate of micronucleus and frequency of chromosome breakage between the adding medicine groups and the control group (P <0. 01).
     本组资料表明,微核率和染色体断裂频率在各加药组和对照组之间均有非常显著差异( P<0. 01)。
短句来源
     The percentage of chromosome breakage cells had no different between test(l0.67%) and contrast ( 8. 00%,P>0. 05 ) .
     试验组染色体断裂细胞百分率(10.67%)与对照组(8.00%)之间差异不显著(P>0.05);
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     The del(X) (p11) occurred through X chromosome breakage and deletion machanism. The i(Xq) resulted from X chromosome centromere misdivision in oocyte.
     dup(X)(p21)是由X染色体姊妹染色单体不均等的互换所引起的,del(X)(p11)是由于X染色体断裂后丢失所致,i(Xq)的发生是由于卵母细胞X染色体着丝粒错分裂。
短句来源
     The structure aberration, such as deletion, chromatid crack, chromatid fructure, Chromosome spatium, Chromosome breakage and fragments, was found in samples with the structure a berration rate of 2. 78 5i, 2. 65 %, 1. 94 % and 3. 10% for four breeds respectively.
     结构变异有缺失,染色单体裂隙,染色单体断裂、染色体间隙,染色体断裂和断片几种类型。 蒙古牛、秦川牛、岭南牛和西镇牛总的结构变异率分别为2.87%、2.65%、1.94和3.10%,平均为2.62%。
短句来源
     Method Tail-suspended mice w ere used as an animal model of simulated weightlessness; chromosome breakage wa s measured by PI staining,and changes of cell membrane were determined by Annexi n-V analysis.
     方法采用尾部悬吊小鼠模型模拟失重 ,碘化丙啶 (PI)染色法检测凋亡细胞染色体断裂 ,Annexin V分析法检测凋亡细胞膜的变化。
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  “chromosome breakage”译为未确定词的双语例句
     It showed a quadratic equation relationship between radioactivity ( X , kBq/g) and mutagenic effect ( Y , %): Y=1.0159+1.1684X+0.3359X 2 . Among the types of aberrations induced by 147 Pm were predominantly of chromatid type, accompanied with a few chromosome breakage and translocation. (
     其所诱发的血淋巴细胞染色体畸变率(Y,%)与注入体内147Pm放射性活度(X,kBq/g)的对数值之间,可拟合成二次函数方程:Y=1.0159+1.1684X+0.3359X2
短句来源
     The percentages of cells with chromosome breakage (comet-tail positive cells)were 100%,90% and 52% for the patient,his father and mother,respectively,while that were only 2%and 5% in two normal same-age children (P<0.001 ).
     患儿及其父母外周血单个核细胞中,彗尾阳性细胞的比例分别为100%、90%和52%,而正常同龄对照的分别仅为2%和5%。 患儿及其父母的 SCGE 各参数均明显高于对照(P<0.01)。
短句来源
     In this study, MMC-induced chromosome breakage tests have been done on 27 healthy controls and 51 patients with bone marrow failure〔including 48 patients with aplastic anemia(AA) and 3 patients with FA before cytogenetic analysis〕.
     本研究通过对我国 2 7例正常人和 5 1例骨髓造血功能衰竭的患者 (48例临床诊断为AA ,3例临床诊断为FA)进行了丝裂霉素C(MMC)诱导的染色体断裂试验。
短句来源
     Thus, the NEU-induced primary chromosome breakage may not be repaired by the ligase.
     由NEU所诱发的染色体初级断裂不能为连接酶所修复。
短句来源
     Higher chromosome aberration happened in the seeds with lower viability, and chromosome bridges, chromosome breakage and chromosome fragments were detected in aged seeds.
     随着老化时间延长 ,老化程度不断加重 ,发芽率低的玉米种子其根尖染色体畸变率相对较高 ,单桥、双桥、断片、落后及其它染色体畸变类型均被观察到。
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  相似匹配句对
     FAMI LY HOT SPOT OF CHROMOSOME BREAKAGE AND TRANSLOCATION
     家族性染色体断裂易位热点
短句来源
     8 chromosome.
     8染色体上有一明显的次缢痕。
短句来源
     2 of chromosome.
     RET基因定位于 10号染色体长臂 1区 1带 2亚带(10all.2)。
短句来源
     Bone breakage
     老母鸡的骨折
短句来源
     Thus, the NEU-induced primary chromosome breakage may not be repaired by the ligase.
     由NEU所诱发的染色体初级断裂不能为连接酶所修复。
短句来源
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  chromosome breakage
Ethyl alcohol induced sex chromosome breakage in the grasshopper,Phloeoba antennata
      
A suitable plant material for chromosome breakage studies: Nigella damascena L.
      
Any polynucleotide break in a duplex zone would result in chromosome breakage and if complementary broken ends interact with each other, then exchange chromosome aberrations may be formed.
      
Chromosome breakage-fusion-bridge-cycle and phenotypic instability in isochromosome lines of tomato
      
All of these endonucleases, which differ with respect to their DNA recognition sequences but produce only one type of DNA damage, showed nearly the same pattern of localized chromosome breakage.
      
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IE the present experiments, the primary roots of Vicia faba have been used to study the induction of chromosome aberrations by NEU and additional Bleomycin post-treatment. The results indicated that the yields of chromosome aberrations induced by Bleomycin post-treatment were markedly higher than the treatment with NEU alone. The two rates of aberrations were 20.4% and 35.4% respectively. It is suggested that the increase of chromosome aberration occured after post-treatments was due to the inactivation of ligase...

IE the present experiments, the primary roots of Vicia faba have been used to study the induction of chromosome aberrations by NEU and additional Bleomycin post-treatment. The results indicated that the yields of chromosome aberrations induced by Bleomycin post-treatment were markedly higher than the treatment with NEU alone. The two rates of aberrations were 20.4% and 35.4% respectively. It is suggested that the increase of chromosome aberration occured after post-treatments was due to the inactivation of ligase by the inhibition of Bleomycin. Thus, the NEU-induced primary chromosome breakage may not be repaired by the ligase. On the other hand, the enhanced effects of additional Bleomycin of the post-treatment were no more expressed at high concentration of NEU. This phenomenon may be assumed that the ligases were injuried by mutagen. The genetic effect of the Blemycin of post-treatments in higher plants will be subjected to another experiment.

本实验利用亚硝基乙基脲(NEU)处理及附加博莱霉素(Bleomycin,简写为BL)后处理对蚕豆幼根诱发染色体畸变进行了研究。结果指出,后处理诱发染色体畸变数量显著的高于NEU单独的处理,它们占有的百分率分别为20.4%及35.4%。这种表现被认为是基于连接酶通过BL的抑制而失活。由NEU所诱发的染色体初级断裂不能为连接酶所修复。反之,当NEU处理的浓度较高时,附加BL后处理对提高畸变率的效果则不复存在。后一现象归之于连接酶受到诱变剂的损伤。 有关BL后处理在高等植物上的遗传学效果将另行实验研究。

Pollution of estuary water of five rivers in Qingdao. was assessed by Tradescantia micronuclei test. These rivers are Haibo River, Licun River, Banqiaofang River, Loushan River and Wantou River. This method was compared with the chemical method. The results are as follows. Tradescantia meiotic pollen mother cells chromosomes were found to be damaged from the wastewater of these five rivers. Chromosome breakage was induced. The chromosome segments became micronuclei on tetrad stage. Tetrads...

Pollution of estuary water of five rivers in Qingdao. was assessed by Tradescantia micronuclei test. These rivers are Haibo River, Licun River, Banqiaofang River, Loushan River and Wantou River. This method was compared with the chemical method. The results are as follows. Tradescantia meiotic pollen mother cells chromosomes were found to be damaged from the wastewater of these five rivers. Chromosome breakage was induced. The chromosome segments became micronuclei on tetrad stage. Tetrads death was induced when the wastewater was highly poisonous. Frequency of micronuclei can be used as pollution index on tetrad stage. Lousan River is heavily polluted. Licun River and Haibo River are heavily polluted too. Banqiaofang River and Wantou River are lightly polluted. Results processed statistically for various pollutants were determined by chemical method. These results were in good agreement. This method can be used for bioassay purpose and used as complementary method for environmental pollution estimation by physical and chemical methods.

村河、板桥坊河、娄山河、湾头河)入海口断面水质污染情况进行监测,并与化学分析法作了对比.监测结果:五条河的污水对紫露草花粉母细胞染色体都有损伤作用,引起染色体断裂,在四分体时期产生微核,污水高度有毒时,使部分四分体细胞死亡.从四分体时期产生的微核率作为污染程度指标.得出娄山河污染最重,其次是李村河、海泊河,较轻的是板桥坊河、湾头河.与化学法测定多种污染物再进行统计处理.来评价各河口水质污染状况,取得了基本一致结果.此法是监测污水行之有效的一种生物法,其方法简单、经济、方便,能在短时间内测出水质污染程度,可作为理化方法评价环境污染的一种补充方法.

Lymphocytes grown in Eagle minimal essential medium deficient folic acid (MEM-FA) have markedly higher sensitivity to environmental genotoxic agents, such as X-ray and smoking. The proofs are as follows: (1) Lymphocyte chromosomes from 113 normal individuals were analyzed in folic acid deficient medium. It is found that the low folic acid is associated with increased chromosome breakage. (2) Chromosome breakages were significantly higher in MEM-PA medium than those in MEM medium with folic acid....

Lymphocytes grown in Eagle minimal essential medium deficient folic acid (MEM-FA) have markedly higher sensitivity to environmental genotoxic agents, such as X-ray and smoking. The proofs are as follows: (1) Lymphocyte chromosomes from 113 normal individuals were analyzed in folic acid deficient medium. It is found that the low folic acid is associated with increased chromosome breakage. (2) Chromosome breakages were significantly higher in MEM-PA medium than those in MEM medium with folic acid. (3) For cells exposed by X-ray in vitro, chromosome breakages were significantly higher in without folic acid medium than those in with folic acid medium. (4) In MEM-FA medium, significantly more chromosome breaks were found in smokers than those in non-smokers.The system may be used as an indication for detecting genotoxic agents to which human being have been exposed.

在缺乏叶酸的基本培养基中,淋巴细胞染色体对环境因子有更高的敏感性,结果表明这个体系可能用于检测环境有害因子对人体的影响。

 
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