遗传作用

This study intends to investigate the correlation between HBV-GN and HLA-DR allele by testing the frequency of HLA-DR gene in HBV-GN patients, to probe into the effect of immunogenetic factor on the pathogenic mechanism of HBV-GN at the genic level and further explore susceptibility gene and/or resistance gene associated with HBV-GN disease, so as to provide certain experimental basis for diagnosis and treatment of HBV-GN.

本研究拟通过检测HBV-GN患者的HLA-DR的基因频率，对HBV-GN与HLA-DR等位基因相关性进行研究，从基因水平探讨免疫遗传因素在HBV-GN发病机制中的作用，并进一步探索HBV-GN疾病相关的易感基因和/或抗性基因，从而为HBV-GN的诊断和治疗提供一定的实验依据。

The macronuclear and mitochondria DNA between the resting and the vegetative cell of Euplotes encysticus were comparatively analyzed by using RAPD technique in order to explore the acting feature of two genetic systems in the resting cell of ciliates.

为了探索纤毛虫休眠细胞中两套遗传系统的作用特征，对包囊游仆虫休眠细胞与营养细胞大核DNA和线粒体DNA进行了RAPD比较。

CAAT box" and "TATA box, potential regulatory motifs from transcription, and conserved cis-acting regulator elements were discovered within LTRs in the great number of sequences using plantCARE sortware.6 The insertional polymorphism of LTR-10 element within the genome of 8 wild species and 28 cultivars of Mallus Mill. was studied by sequence-specific amplification polymorphism.

分析获得的Tyl-copia类逆转座子的LTRs，其中含有启动子的结构特征&CAAT box&和&TATA box&及受不同胁迫条件作用的调控元件。6、基于苹果Tyl-copia类逆转座子LTR-10的SSAP技术在苹果属8个野生种和28个栽培品种中表现出了丰富的遗传多态性，多态性片段比例为88.2％。

First , girls' adolescence is between 7 and 19, which varies with themselves or matrilineal. That means, girls' first sexuality usually begin to develop when they are 7, sport and nutrition are two main factors that influence the adolescence most.

也就是说少女一般在七岁的时候女性的第一特征开始发育，当然也会因人而异，有的是遗传自母亲，有的也会根据自身的身体状况的不同而不同，主要是运动和营养两方面在起作用。

In consideration of previous results from nuclear gene research, it is likely that matrilineal landscapes of both Hakka and Chaoshanese have largely been shaped by the local people during their migration southward and/or later colonization in southern China, and factors such as cultural assimilation, patrilocality, and even sex-bias in the immigrants might have played important roles during the process.

考虑到之前的核基因的研究成果，可以认为客家人和潮汕人的母系主要来自原南方原住民。在他们迁徙到南方或者征服南方的过程中，文化上的同化，从父居的社会结构以及移民中的性别差异对现在的遗传结构起到了关键的作用。

As one of the most classical model organisms, Drosophila melanogaster has been instrumental for the establishment of the chromosome theory of genetics.

黑腹果蝇是生物学研究中最重要的模式生物之一，它在遗传的染色体理论建立中起到非常重要的作用。

As one of the most classical model organisms, Drosophila melanogaster has been instrumental forthe establishment of the chromosome theory of genetics.

黑腹果蝇是生物学研究中最重要的模式生物之一，它在遗传的染色体理论建立中起到非常重要的作用。

Separation of the PCR products and fluorescence detection were performed by ABI prism 310 Genetic Analyzer with capillary electrophoresis. The Genescan and Genotype soft ware were used for size calling and quantification of peak areas. The formula to calculate donor chi?merism values was based on the different allelic distribution type between donor and recipient.

HSCT后转归的预警作用，采集27例清髓性外周血干细胞移植患者移植前、移植后不同时段的外周血或骨髓，DNA样本用Profiler Plus和Cofiler Plus商品化试剂盒扩增后，用ABI310遗传分析仪进行毛细管电泳，确定基因位点及峰面积，根据基因型的差异选择嵌合率计算公式。

Accordingly we start from the definition of heterosisH=F1-MP,where H is heterosis, F1 is the first generation offspring, MP is the mean of the parents or midparent, and from the use of a binomial random variable and its extention to the multinomial case derive the basic relations of heterosis with its components.

另一在原文中未加说明的原因是，用配合力概念需要无穷多个品系才能和遗传力的结果相比较，仅此一点就把配合力的作用排斥掉了。文中的主题是杂种优势老大难题可以用笛卡尔的推理方法来解决。

Usually modern medicine think UC relates to heredity, immunization, infection and consciousness and so on many aspect factors. Effect of immunization factor at the morbility of UC has been confirmed, and become a study hot spot.

现代医学一般认为溃疡性结肠炎涉及到遗传、免疫、感染、精神等多方面的因素，其中免疫因素在溃疡性结肠炎发病中的作用已经得到肯定，且成为研究的热点。

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％。