查询词典 DNA

In explants of W5, DNA and RNA content increased in both ovules and parenchyma. DNAcontent in proligerous cells decreased after 6 days of culture. Amylose increased inparenchyma gradually and big starch grains appeared in proligerous cells.

在 W5 上的外植体内胚珠和薄壁组织细胞的 DNA、RNA 都增加，第 6-9 天，增生的细胞 DNA 含量减少；薄壁组织中多糖含量一直增加，并且发现增生的细胞内布满了大的淀粉粒。

Furthermore, with only a half -dose of DNA in the current system, by the horizontal system under×100 magnification both the survival rate of pronuclear embryos following microinjection and the integration frequency of exogenous DNA injected into embryos also increased.

此外，利用该系统还可在低倍镜下×100）将DNA常规注射量减半注射，提高了原核胚注射后的成活率，其注射胚的外源基因整合率亦明显提高。

Description: Repbase Update is a database of prototypic sequences representing repetitive DNA from different eukaryotic species.

网站描述：重复DNA序列数据库更新是收集代表不同真核物种中重复性DNA的原型序列的数据库。

Repbase Update is a database of prototypic sequences representing repetitive DNA from different eukaryotic species.

重复DNA序列数据库更新是收集代表不同真核物种中重复性DNA的原型序列的数据库。

MethodUsing the canis MC4R DNA as template,the specific primers were designed. After PCR amplification,product was cloned into pGEX-4T-1 vector by LP Recco PCR cloning technique,the recombinant pGEX-4T-1-cMC4R was transferred to E.

方法以Beagle犬基因组DNA为模板，经PCR技术扩增目的片段，利用LP Recco PCR克隆技术将目的片段直接重组到原核表达载体pGEX-4T-1上，转化到E.coli DH5α，筛选阳性克隆，BamHI、XhoI酶切鉴定，DNA 测序检测插入序列的正确性。

In 1987, the notion of a splicing system was introduced by Tom Head in [3] as a mathematical model of restriction enzyme digestion and subsequence religation in the recombination of DNA molecules.

摘要1987年，Tom Head发表了一篇论文，引入拼接系统的概念作为限制酶与DNA作用、进行DNA重组的数学模型。更重要的是，他还证明正则语言中的一类——严格局部可测语言，与拼接语言的子类——持续拼接语言等价。

On the 12〓 day, classical DNA ladder appeared after electrophoresis. Fine structural observation showed that the senescence process in this system is a highly ordered programmed cell death process, and its function was speculated as nutrition remobilization. All these suggested that this system is a plant cell apoptotic system.

从第8天开始有些细胞核开始出现TUNEL阳性反应，在处理12天时，总DNA电泳中出现了典型的DNA ladder，超微结构观察发现其衰老过程是一个高度有序的程序化死亡过程，推测功能上是一个营养物质再利用的过程，因而这一体系是一个细胞凋亡体系。

Rapid amplification of cDNA end:Retroverse transcription product of total RNA extracted from normal porcine tissue was used as the template,gene specific primers were designed and advantage 2 polymerase mix was used in PCR,of which using porcine genomic DNA as the template:forward primer was designed according to the acquired consensus region of human and pig FGL2 3′ sequences while reverse primer was designed from human FGL2 3′ end downstream sequence;TA cloning.

以猪正常小肠及心脏组织提取新鲜总RNA，反转录后作为模板，设计基因特异性引物，采用Advantage 2 聚合酶混合物进行PCR扩增；依据猪与人FGL2基因3′端已知同源序列设计PCR上游引物，以人FGL2基因3′末端序列设计下游引物，以猪基因组DNA为模板采用Advantage 2 聚合酶混合物进行PCR反应；PCR载体重组质粒DNA亚克隆扩增。

The observed cell showed signal spots and their location in different region of chromosomes in different lines.The experimental results mentioned above demonstrated that Rhizophora apiculota DNA have been introduced into tomato and integrated with tomato genome. The obvious improvement in the salt tolerance among their progenies was most probably related with the variation of their genome.

通过以上细胞生物学和分子生物学的研究表明，外源DNA已导入普通番茄，与其基因组整合并遗传给后代，外源红树DNA片段的渗入导致了转化植株在形态、细胞结构以及分子水平上的变异，转化番茄后代耐盐能力的增强可能与番茄基因组的这种变化有关。

Accordingly three DNA computing models, the solution-based model, surface-based model and the combination of solution and surface-based model, were presented to solve 0-1 programming problem in the study. The advantages of massive parallelism, high-density storage and potential robotization of solution-based and surface-based model were well embodied and their shortages such as timewasting operations and less massive parallelism were also avoided by all means in these models.

本文用DNA计算解决规划问题的研究中，对0-1 规划问题分别给出了基于溶液计算、表面计算和溶液表面结合计算的三类DNA 计算模型，分别强调了溶液计算的高度并行和高存储性，表面计算的高自动化程度等优点，并进一步利用溶液与表面计算相结合的方法来避免各自的缺点，突出其优点，生物实验对溶液与表面计算相结合的模型进行了验证。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。