分子分离

Based on Bayesian statistics and quantitative genetic model of triploid endosperm traits, we proposed a Bayesian method for mapping QTL underlying endosperm traits, which used the DNA molecular marker genotypes of each plant in segregation population and the single endosperm observation of a few endosperms of each plant as data set to analyze endosperm QTL.

将贝叶斯统计原理和胚乳性状的数量遗传模型相结合，以分离群体中各植株的分子标记基因型以及植株上若干粒种子胚乳性状的单粒观测值为数据模式，提出胚乳性状QTL区间作图的贝叶斯方法。

It was typically indirect effect that the following variations induced in the progenies of endosperms implanted by heavy ion beams were discovered. 1 In comparison with control, there were very high differences in biological trait, anti-oxidation enzyme activity, MDA content and protein content, chromosome aberration rate and micro-nucleus rate in M1 generation. 2 Shorter stem variants and purple stem mutants were analyzed by RAPD and AFLP. The analytic results showed that the sequences of their DNA were changed, so those variations were not physiological damage only. And there were differences among M2 generation plants of the same sort of variants or mutants, it was indicated that M2 generation may be in disjunction.

M1代的生物学性状、幼苗的抗氧化酶活性、MDA含量、蛋白质含量和染色体畸变率及微核率等发生了较大的变化。2）对其矮杆变异株和紫色茎杆突变体（M2）做RAPD和AFLP分子鉴定等研究，结果显示了矮杆变异体和紫色茎杆突变体的DNA序列发生了改变，而非仅仅产生生理损伤；同一种变异体或突变体，在M2代单株间也存在着明显的差异，表明它们可能还处于分离状态。

In order to analyze the thermal cracking products of fuels, we set up a GC analytical system. The gas products, which comprise methane, ethane, ethylene, propane, propylene and other gases, were collected and analyzed by gas chromatography provided with a flame ionization detector . We calculate the theoretical heat sink of n-heptane at the temperature of 600℃ and 800℃. The theoretical heat sink calculation of iso-octane at 700℃ is also related.

建立了用于分析裂解产物的气相色谱分析系统，解决了本研究中对气态裂解产物的分析要求，特别是气态小分子饱和烃和不饱和烃的有效分离；并根据裂解产物的组成及其生成热数据，对正庚烷在600℃和800℃，异辛烷在700℃时裂解的热沉进行了理论计算。

SDS-PAGE as the isolation and identification of biological macromolecules in one of laboratory means, it has become one of the important laboratory technique in Molecular biology.

SDS聚丙烯酰胺凝胶电泳技术作为分离鉴定生物大分子的一种实验技术手段，已经成为分子生物学实验室中的重要技术之一。

The natural red yolk of duck's eggs is produced by the laying duck in the lake areas in southward of China.

采用薄层色谱、高效液相色谱质谱质谱及高分辨电子轰击质谱方法，分离鉴定了天然红心鸭蛋蛋黄中红色素的分子组成和结构。

Methods:An individual KG1a+ phagescFv library for the binding specificity to eight hematopoietic progenitor cell lines by indirect immunoflurorescein were identified.

用完整的KG1a细胞吸附法富集文库3轮，再用CD44单克隆抗体为引导分子进行引导选择，分离单克隆后用间接免疫荧光法鉴别其细胞结合特异性。

Methods:An individual KG1a+ phage??scFv library for the binding specificity to eight hematopoietic progenitor cell lines by indirect immunoflurorescein were identified.

用完整的KG1a细胞吸附法富集文库3轮，再用CD44单克隆抗体为引导分子进行引导选择，分离单克隆后用间接免疫荧光法鉴别其细胞结合特异性。

You have isolated a plasmid DNA that is a closed circular molecular 1050 bp in length with 5 negative supercoils.

你分离出的质粒 DNA 为1050 bp 长度的共价闭合环状分子，具5个负超螺旋。

It bases on the weakly intermolecular force that can be described by the structure parameters of solutes.

气液色谱分离是溶质在固定液和载气两相之间的分配行为，由组分与固定液分子间的作用力所决定。

Repetitive element sequence-based PCR can be used to type vibrio parahaemolyticus, which is super to the serotyping method.

重复序列PCR可以用于副溶血弧菌临床分离株的分子分型研究，其分型敏感程度优于血型分型。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。