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基因遗传学
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  gene genetics
     Aimed at the shortcomings of the BP algorithm,such as low efficiency of study,slow speed of convergence,easy to be trapped into local optimums,etc,this paper introduces Genetic Algorithm (GA) -a new algorithm based on natural selection and the principle of gene genetics, and discusses its weights optimizing in BP neural networks.
     针对BP算法学习效率低、收敛速度慢,以及易陷入局部最优等缺点,提出了一种新型的、基于自然选择和基因遗传学原理的随机搜索算法——遗传算法(Genetic Algorithm),并论述了它在BP神经网络中权值优化的问题。
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  “基因遗传学”译为未确定词的双语例句
     Study on Molecular Genetics of Dwarfing and Semi dwarfing Genes in Rice
     水稻矮秆基因遗传学和分子遗传学研究利用
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     In recent years significant progress has been made on Bt genetics and molecular biology, especially the Bt toxin protein gene in engineered bacterium.
     近年来,有关Bt毒蛋白基因遗传学和分子生物学的研究已取得显著进展,特别是用该基因构建工程菌成为研究的热点。
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     Genetic algorithm is a kind of optimization searching algorithm which is based on the natural selecting and the theory of genetics.
     遗传算法是一种基于自然选择和基因遗传学原理的优化搜索算法。
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     In part two on the next issue, we will focus on BDNF and LTP, several activity ~ dependent genes which related to LTP and learning and memory, and introduce some interesting LTP related work.
     下期继续LTP话题,我们将介绍最近与LTP相关的BDNF(脑组织神经生长因子)及基因遗传学研究。
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     Conclusion VHL gene aberration is not only responsible for the pathogenesis of VHL disease, but also an important pathogenetic basis for sporadic ELST.
     结论 VHL基因的异常导致其功能改变不但是VHL的致病原因,而且是散发性内淋巴囊瘤发病的重要的基因遗传学基础。
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     4 new genes were obtained.
     U基因
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     Genetic Research into a Schizophrenia-associated Gene
     精神分裂症相关基因遗传学研究
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     A study of factor Ⅷ gene with molecular genetics.
     F VⅢ基因的分子遗传学研究
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     The NiCoT gene of S. aureus had been successfully expressed in E.
     外源基因在E.
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     An Experiment in Genetics
     遗传学实验
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Three problems are discussed in this paper. ① It is necessary to strengthen the study on breeding for disease resistance in Brassica napus (L.). Studies made by the authors show that wide hybridization between B. napus and Chinese medicinal herb probably is an important way for diseaes resistant breeding.② Many studies have been made on in rapeseed have been found. So wide hybridization should be made to enrich the genetic composition of B. napus in China. ③ The authors reported their success on intergeneric...

Three problems are discussed in this paper. ① It is necessary to strengthen the study on breeding for disease resistance in Brassica napus (L.). Studies made by the authors show that wide hybridization between B. napus and Chinese medicinal herb probably is an important way for diseaes resistant breeding.② Many studies have been made on in rapeseed have been found. So wide hybridization should be made to enrich the genetic composition of B. napus in China. ③ The authors reported their success on intergeneric hybridization between B. napus and I satis indigotica Fort. and Capsella bursa pastoris (L.) Medic and point out that the traditional genetic theory is hard to guide and explain the wide hybridization. A new genetic theory should be founded.

在分析了我国油菜遗传育种形势后,认为:①抗病育种未开展系统研究,用中草药与油菜进行远缘杂交可能是抗病育种的重要途径;②油菜属间远缘杂交研究甚少,应该借鉴小麦属间杂交育种,拓宽我国甘蓝型油菜的遗传基础;③作者通过用菘蓝(板蓝根)、荠菜与甘蓝型油菜属间杂交成功的事例,认为孟德尔创建的种内杂交等位基因遗传学,难于指导和解释远缘杂交工作,应该创建新理论。

According to the llth THW standard, we designed a pair of primers by which asegment of 256bp of HLADRB1, B3, B4, and B5 could be amplified simultaneously.Twenty-seven oligonucleohde probes were designed and synthesized for 39 loci onDRB1, 3 on DRB3, 1 on DRB4 and 3 on DRB. A PCRSSO DNA typing protocolwas built which met the standard of HLA class II DNA typing in llth IHW. Withthes method, 186 of Chinese (Han) in Xi'an, 169 of Hu in Mngxia, 200 of Uygurin Xinjiang, and 188 of Tibetan in Tibet were detected with...

According to the llth THW standard, we designed a pair of primers by which asegment of 256bp of HLADRB1, B3, B4, and B5 could be amplified simultaneously.Twenty-seven oligonucleohde probes were designed and synthesized for 39 loci onDRB1, 3 on DRB3, 1 on DRB4 and 3 on DRB. A PCRSSO DNA typing protocolwas built which met the standard of HLA class II DNA typing in llth IHW. Withthes method, 186 of Chinese (Han) in Xi'an, 169 of Hu in Mngxia, 200 of Uygurin Xinjiang, and 188 of Tibetan in Tibet were detected with a comparison study. Thegenetic distribution of 46 loci of DRB in four ethnic healthy populations weresurveyed. No diversity has been found between Han and Hin in DRB DRBl 02(16.9%), DRBl * 07 (13.1%), and DRBl * 09(12.0%) were the higher frequent lociin Han. More DRB loci were detected in Tibetan but without higher loci as in Hanand Hui. The DRB polymorphism of Uygur population was similar to Caucasian. Adiscrindnahve highest frequency of DRBl * 07(23.8%) was found in Uygur, whichimpied a selechon happened.

按照第11届国际组织相容性抗原研讨会(11IHW)I作会议HLAⅡ类PCR-SSO分型标准和美国国立骨髓供者计划组织(NMD)对HLADRB位点等位基因分型要求,设计合成1对引物,扩增HLADRBDNA片段,长度为256bp,设计合成不同片段大小探针27种,可检出DRB座位上DRB1的39种等位基因,DRB3的3种等位基因,DRB4的1种等位基因和DRB5的3种等位基因。对西安地区汉(183份)、宁夏回(169份)、新疆维(2O0份)及西藏藏(188份)民族DRB的46种等位基因进行多态性分析,建立了4个民族正常群体DRB基因的遗传学参数,分析了他们在等位基因分布上的差异,结果表明:回族与北方汉族HLA遗传分布上没有较大差异,DRB1·02(16.9%)、·07(13.1%)和·09(12.0%)为高频基因:藏族检出等位基因数较前两者多,但没有显著的高频基因;维族等位基因分布整体接近高加索人种,但DRB1·07(23.8%)基因频率异常显著,暗示民族有遗传选择。

Mh-1 is a tall plant mutant induced by irradiation from semi-dwarfed variety Guichao 2. The genetic analyses were carried out through the F1, F2, F3 progenies and test-crossed F1 on Mh-1 crossed with materials with sd-1 gene, non-allelic gene to sd-1 and common tall plant. The results indicate that the induced tall plant trait of Mh-1 is controlled by a recessive inhibiting gene, named tentatuvely i-sd-1(t), that can regulate the expression of sd-1 gene but not of non-allelic gene to sd-1. The valuation of i-sd-1(t)...

Mh-1 is a tall plant mutant induced by irradiation from semi-dwarfed variety Guichao 2. The genetic analyses were carried out through the F1, F2, F3 progenies and test-crossed F1 on Mh-1 crossed with materials with sd-1 gene, non-allelic gene to sd-1 and common tall plant. The results indicate that the induced tall plant trait of Mh-1 is controlled by a recessive inhibiting gene, named tentatuvely i-sd-1(t), that can regulate the expression of sd-1 gene but not of non-allelic gene to sd-1. The valuation of i-sd-1(t) in hybrid rice breeding was discussed.

Mh-1是从矮秆品种桂朝2号辐射诱变后代中产生的高秆突变体。用Mh-1与sd-1矮秆、非sd-1矮秆和普通高秆材料杂交,通过对F1、F2、F3等世代以及测交后代的株高进行遗传分析,结果表明Mh-1的高秆特性是由1对隐性抑制基因控制的。该抑制基因能调节sd-1基因的表达,而对由非sd-1基因控制的矮秆没有抑制作用,这一隐性抑制基因暂时被定名为i-sd-1(t)。还讨论了该基因的遗传学意义和可能的育种利用价值。

 
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