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chromosome structures
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  染色体结构
     Imaging of metaphase chromosome structures of Physarum polycephalum by atomic force microscopy
     多头绒泡菌(Physarum polycephalum)中期染色体结构的AFM成像研究
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     The chromosome structures of all the four cultivars mainly consist of metacentric chromosomes. According to Stebbins'classification of karyotypic asymmetry, the karyotype of cv. 'Yinbian'is of 1B type, and that the other three of 2B type.
     4个墨兰品种的染色体结构主要由中部着丝粒染色体组成,除银边墨兰为1B型外,其它均为2B型。
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  “chromosome structures”译为未确定词的双语例句
     Two different SMC proteins from these subfamilies can form three kinds of heterodimers: SMC2-SMC4, SMC1-SMC3 and SMC5-SMC6. These heterodimers serve as the core components of the whole functional complexes (such as Condensin) involved in the dynamics of higher order chromosome structures.
     两个不同的SMC蛋白组成异二聚体,形成三种异二聚体:SMC2—SMC4、SMC1—SMC3和SMC5—SMC6。 这些异二聚体又作为大的功能复合物的核心组分。
短句来源
     Comparing with their parent Jinan 177, the chromosome structures of Ⅰ 1 9 and Ⅱ 1 3 were mainly varied in 2A, 5A and 6B. This assay initially revealed the difference of chromosome structures between hybrid lines and their parent wheat. At the same time, there were distinct differences between the two hybrid lines.
     核型分析发现 , - 1- 9和 - 1- 3与亲本济南 177的差别主要在2 A、5 A和 6 B染色体上 ,而且与亲本相比染色体发生结构变异 ,两个杂种株系之间亦存在明显的染色体形态差异。
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     The results confirm that the packages of mataphase chromosomes are highly order and the chromosome structures at near native state as well.
     这些结果进一步证实了中期染色体包装的高度有序性,多层次结构是由螺旋方式形成,同时表明AFM是在近自然状态下研究生物大分子结构的强有力工具.
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     By using the genetic algorithms with hierarchical chromosome structures,rule generation and para-(meter) tuning of the fuzzy controller can be achieved simultaneously.
     采用具有层次结构染色体编码方式的遗传算法来设计模糊控制器,实现了语言控制规则的自动生成和隶属函数参数的自动整定.
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  相似匹配句对
     structures.
     结构延性的有效措施——人工塑性铰。
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     The structures of
     这些醚化产物的结构由红外、核磁、质谱确定。
短句来源
     THE REPLICATION OF CHROMOSOME
     染色体的复制
短句来源
     6 chromosome.
     在No.6的长臂远端区域可见次缢痕。
短句来源
     Imaging of metaphase chromosome structures of Physarum polycephalum by atomic force microscopy
     多头绒泡菌(Physarum polycephalum)中期染色体结构的AFM成像研究
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  chromosome structures
Individual chromosome structures and reactivities permit the recognition of similarities to the Algerian hedgehog Aethechinus algirus and indicate their close relationship.
      
Characterization of chromosome structures of Falconinae (Falconidae, Falconiformes, Aves) by chromosome painting and delineation
      
Cell stages are easily identified and cell and chromosome structures are preserved.
      
In addition, in both chorionic villi and placental fibroblasts, large differences were observed between various chromosome structures within individual metaphases.
      
Despite the high degree of conservation of the chromosome structures, the specific status of these species is supported by maintenance of distinctness when they occur in areas of sympatry.
      
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Squash,paraffin section and chromosome banding technique were used to observe the condition of the intercellular chromatin migration (cytomixis) and chromo- some aberration in pollen mother cells (PMCs) of Vicia faba.The following phenomena were found in our experiments; 1.Cytomixis also occurred at synizesis stage.2.8.08% of PMCs had a chromosome number deviating from their normal numbers (n=6).3. The changes in chromosome structure included the chromosomes with a increased or de- creased...

Squash,paraffin section and chromosome banding technique were used to observe the condition of the intercellular chromatin migration (cytomixis) and chromo- some aberration in pollen mother cells (PMCs) of Vicia faba.The following phenomena were found in our experiments; 1.Cytomixis also occurred at synizesis stage.2.8.08% of PMCs had a chromosome number deviating from their normal numbers (n=6).3. The changes in chromosome structure included the chromosomes with a increased or de- creased length and chromosome bridges.4.Appearance of anucleate and binucleate PMCs.Plenty of evidence shows that the last three phenomena are related to the first one.

采用压碎、石蜡切片及植物染色体分带技术观察蚕豆花粉母细胞减数分裂过程发现:1.蚕豆花粉母细胞减数分裂的凝线期也出现染色质胞间转移现象;2.在8.08%的花粉母细胞内,染色体偏离正常的数目(n=6);3.染色体结构也有显著改变,其中包括染色体断裂、桥和长度的增减;4.出现双核和无核的花粉母细胞。大量证据表明,这些畸变现象同凝线期的染色质胞间转移有关。

The genome of Avena nudibrevis 1-6-300/55 was Studied, Observedand identified with the root-tip pressing method: the specy was proved to be a stable diploid with the chromosome number of 14 (2n=2x=14).The chromosome structure, function and morphology were also studied.It had seven chromosome pairs altogether, four centre-centromere chro-mosome pairs (M) , two near centre-centromere pairs (SM) and onechromosome pair that had sate llites (sat). The genome pattern was2n=4M+2SM+1Sat, Neither the...

The genome of Avena nudibrevis 1-6-300/55 was Studied, Observedand identified with the root-tip pressing method: the specy was proved to be a stable diploid with the chromosome number of 14 (2n=2x=14).The chromosome structure, function and morphology were also studied.It had seven chromosome pairs altogether, four centre-centromere chro-mosome pairs (M) , two near centre-centromere pairs (SM) and onechromosome pair that had sate llites (sat). The genome pattern was2n=4M+2SM+1Sat, Neither the centre-centromere chromosome nor theterminal-centromere chromosome was found.The specy was proved to be Avena nudibrevis. Its centromeres, relativelengh of the seven chromosome pairs and the positions where the secon-dary constrictions exist are all determined, varying from the diploidAvena nuda in china, it belongs to another specy, cytological evidencefor Avena classification and crossbreeding was gathered by the experiment.

本实验对1-6-300/55小粒裸燕麦(Avena,nudibreris)进行染色体组型研究。采用根尖压片法观察鉴定该品种染色体数目为2n=2x=14是稳定的二倍体。对其染色体结构、功能、形态进行了研究。1-6-300/55的七对染色体中有4对为中部着丝点染色体(M),2对近中着丝点染色体(SM),1对具有随体的染色体(Sat),其染色体组型为:2n=4M+2SM+1Sat。没有近端和端部着丝点染色体。实验结果证明;该品种为二倍体小粒裸燕麦,确定了7对染色体的相对长度和着丝点,次缢痕的位置。它不同于我国二倍体裸燕麦,属于另一个种.为今后的燕麦分类,杂交育种提供了细胞学依据。

The cutting pieces of bulb of Fritillariae pallidiflorae were cultured on MS media supplemented with 2, 4-D, IAA, NAA or 2, 4-D+KT、 IaA+KT, NAA+KT. (2, 4-D, IAA, NAA 1mg/l, KT 0.1mg/l). Chromsome variations in calli and callus differentiation and chromosome ploidy of regenerated plants were studed. The results showed that 2, 4-D could give rise clear changes of chromosome numbers. A higher frepuency of polyploid cells appeared on the medium with 2, 4-D+KT, and then IAA、 NAA only produced little effect....

The cutting pieces of bulb of Fritillariae pallidiflorae were cultured on MS media supplemented with 2, 4-D, IAA, NAA or 2, 4-D+KT、 IaA+KT, NAA+KT. (2, 4-D, IAA, NAA 1mg/l, KT 0.1mg/l). Chromsome variations in calli and callus differentiation and chromosome ploidy of regenerated plants were studed. The results showed that 2, 4-D could give rise clear changes of chromosome numbers. A higher frepuency of polyploid cells appeared on the medium with 2, 4-D+KT, and then IAA、 NAA only produced little effect. However, all of these hormone combinations could cause different types of mitotic abnomality and the variations of chromosome structure. Such effects quite corresponded with that on variations of chromosome numbers. Me Study also showed that chromosome euploidy was important factor for callus differentiation. Therefore, most of the regenerated plants were diploid, a few of them were tetraploid, the mixoploids were seldom seen. In accordance with results of our experiments, the possible reason for chromosome variation and relations between variation of chromosome numbers and callus differentiation were discussed.

伊贝母鳞茎培养在附加2,4—D、IAA、NAA和2,4—D+KT、IAA+KT、NAA+KT的MS培养基上(2,4—D、IAA、NAA1毫克/升,KT0.1毫克/升),研究了愈伤组织细胞染色体的变异及愈伤组织的分化和再生植株的染色体倍性。结果表明,2,4—D能有效地引起染色体数目的变化,当和KT结合使用时,可诱导高频率的多倍化细胞。IAA的作用次之,NAA较小。各种激素均能程度不同地引起各种类型的有丝分裂异常及染色体结构变异,其效应与对染色体数目变异的影响呈现明显的一致性。研究还得出,染色体的整倍性是愈伤组织得以分化的重要因素,所以再生植株主要是二倍体,也有少量的四倍体,混倍体仅占少数。根据实验结果,对染色体变异的原因以及染色体数目变异与愈伤组织分化的关系进行了讨论。

 
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