查询词典 fragment

Results The full-length variant-specific surface antigen gone fragment from G. lamblia was found to be 2 142 bp, encoding a 713 amino acid polypeptide and contained a single open reading frame.

结果 中国人源蓝氏贾第鞭毛虫基因全长为2 142 bp，编码1条长为713个氨基酸残基的多肽链，含有一个简单的开放阅读框。

A representative set of 42 leucaena genetic resources from Thailand, USA, Mexico, Philippines, Clolmbia and China, were analyzed by amplified fragment length polymorphism methodology.

对中国热带农业科学院热带品种资源研究所从泰国、美国夏威夷、墨西哥、菲律宾、哥伦比亚和中国引进的42份银合欢种质进行AFLP分析。

Then, ligate ri fragment and the vector pGEX-2T to construct the fusion expression system pGEX-2T-ri.

SDS-PAGE证明，重组融合蛋白的分子量约76kD，并主要以包涵体的形式存在。

A pair of primers producing 614bp amplification fragment were designed based on the sequence of the C\|polyhedrin gene of Bombyx mori CPV,and the expected amplification products were obatined when genomic dsRNAs isolated from purified BmCPV,DsCPV and Lymantria dispar CPV were used as templates.Genomic dsRNAs isolated from Heliothis armigera CPV and DNAs from Lymantria dispar nuclear polyhedrosis virus and DNAs from midgut tissue of healthy Dendrolimus spectabilis larva did not yield any amplification products.The detection limit of purified DsCPV genomic dsRNAs was 1.0pg.

依据家蚕质型多角体病毒质型多角体蛋白的核苷酸序列设计一对引物，从纯化的DsCPV\，BmCPV和舞毒蛾质型多角体病毒的基因组dsRNA可成功地扩增出长614bp的目的片段，从提取的健康松毛虫幼虫肠组织的DNA、舞毒蛾核型多角体病毒基因组核酸、以及棉铃虫质型多角体病毒基因组核酸，未能扩增出目的片段。

The results showed that the optimized content of Mg~(2+) was 5mmol/L; dNTP was 200μmol/L; Primer was 0.5μmol/L; Taq polymerase was lU/50ul in the PCR system. Only one fragment of about 270bp was amplified within the genome of 12 wild species and 23 cultivars of Mallus Mill., which indicated that Ty1-copia-like retrotransposons were archaic components of apple genome. The nested insertion of near and within the reverse transcriptase gene of Ty1-copia-like retrotransposons wasn\'t found in apple genome.2 The reverse transcriptase conservative region of Ty1-copia-like retrotransposons were amplified from Gala apple using the optimized PCR system. The amplification product was isolated, cloned and sequenced. Forty-five clones containing reverse transcriptase conservative region were obtained (accession number: AY849580 -AY849592 and DQ105035-DQ105066). Cluster analysis of these sequences showed a great heterogeneity among RT domains isolated from the same genotype.

从苹果属12个野生种和苹果23个栽培品种中都扩增到了约270bp的目的产物，且所有试材的扩增结果一致，均无目的条带以外的产物扩增，说明Ty1-copia类逆转座子在苹果属植物中广泛存在，且存在历史可能较为久远；从扩增结果看不出该逆转座子的逆转录酶基因或附近区域在苹果基因组内有嵌套行为的发生。2、利用优化了的PCR方法从嘎拉苹果基因组克隆了45条Ty1-copia类逆转座子逆转录酶保守序列(登陆号分别为AY849580-AY849592和DQ105035-DQ105066)，结果表明，同一基因组来源的这些序列存在高度的异质性。

The 383 bp fragment is specific to strains of Y.pestis from Marmota baibacina Spermophilus undulates Plague Focus of the Tianshan Mountains and these strains may be the ancestor of Y.pestis in China.

该383bp片段为天山山地灰旱獭、长尾黄鼠鼠疫自然疫源地的鼠疫菌所特有，此疫源地的菌株可能是我国较古老的鼠疫菌。

A efficient stereo-controlled synthesis of the key fragment of the mother spiroketal moiety of the HIV-1 protease inhibitor didemnaketals was achieved through nine steps from the natural --menthone.

五、以天然L--薄荷酮为手性起始原料，分别经过九步化学转化合成了抗艾滋病活性的Didemnaketals类化合物母体螺环部分的关键组成片段。

Leaf temperatures and other microclimatic elements were measured along a transect extending from the interior to the open field at south facing edge of a 3 hm 2 tropical dry seasonal rainforest fragment in Xishuangbanna.

在西双版纳地区一块面积为3 hm2热带干性季节性雨林片断的南向林缘，观测了林内至林外水平样带上的植物叶温及其它小气候要素。

A solution is to minify the cell size to one third of the original size, with removing fragment units and setting a more strict slope threshold .Thus, the stability can be kept and the developable slope area can be reduced.

解决办法为缩小网格单元，将原本25公尺的规定网目细分为三分之一大小，并采用除碎方法以及提高坡度门槛，如此将仍保有高稳定性，并使可开发面积缩小，以降低山坡地开发之压力。

Feng Zikai surveys all with wisdom eye alone, is expert in drawing the pregnant life meaning from the common trivial matters and exerts the speciality of cartoon's random, relaxation and activity in full. He forms a straightforward natural and common strange style by trivial matters around, daily information and fragment idea revealing straight and mixedly.

丰子恺先生独具慧眼地审视一切，善于从平凡琐屑的事中画出耐人寻味的人生意味，他充分发挥了漫画随意、轻松、活泼的特长，一任身边的琐事，日常的见闻，片断的思想率然地、杂然地流露，自成一种率真自然，平中见奇的风格。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。