等位基因的

In population genetics, gene flow is the transfer of alleles of genes from one population to another.

在群体遗传学中，基因流动是基因的等位基因从一个群体转移到另一个群体。

Thus, if height is controlled by two genes, A and B, and tall and short forms are determined by dominant and recessive alleles respectively, then the cross Aabb × aaBB would give an F1 AaBb, containing both dominant genes for tallness.

假设，高度性状是由两个基因 A 和 B 共同控制，且高与矮两种表型分别为等位基因中的显性和隐性基因所决定，那么， Aabb × aaBB 杂交的结果是 F1代为 AaBb ，含有决定高性状的两个显性基因。

This uncoupling allows the evolution of new genes, both within gene families and also allelic forms of a gene.

这一耦联允许新基因的形成，不论是在基因家族内还是以某个基因的等位基因形式。

A gene can have many alleles and individuals can have a homozygous or heterozygous genotype.

一个基因可有许多等位基因，而个体可有纯合或杂合的基因型。

VWF gene is one of the most polymorphism genes. There is a lot of allele in 40th intron of vWF gene, and the heterozygous rate is higher.

vWF基因是人类最具多态性的基因之一。vWF基因40号内含子中的VNTR存在多种等位基因，有较高的杂合频率。

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。

Methods 202 kinless subjects of the Chinese Han were investigated in this study, including 82 normal controls, and 120 cases diagnosed as CHD. The PPARδ+294T/C gene polymorphism was determined by polymerase chain reaction and restriction fragment length polymorphisms. The frequencies of PPARδ+294T/C genotypes and the "C"allele frequency were analyzed, to evaluate the risk for the CHD among variant genotypes.

运用聚合酶链式反应及限制酶片段长度多态性技术分析无血缘关系汉族人群[包括82例正常对照者，120 例冠心病患者]的PPARδ+294T/C基因多态性，分析基因型频率、等位基因频率，并对不同基因型患者冠心病的危险性进行评价。

To investigate distribution of gene mutations in LPL exon 9 in Chinese population and to study the possible effects of the mutation on plasma lipids, variants were screened by PCR-SSCP and DNA sequencing. Ser~(447)→stop polymorphism was identified by PCR-RFLP . the plasma lipids in stop447 carrier group and stop447 noncarrier group were compared and analysis.

为探讨中国人群LPL基因外显子9常见突变的种类、频率以及其可能产生的影响，我们利用聚合酶链反应-单链构象多态性分析和DNA测序技术及PCR-RFLP技术检测出我国人群的LPL外显子9基因突变、基因型和等位基因频率，确定了中国人群Ser~(447)→stop这一多态性位点。

Methods One hundred thirty PCOS women and one hundred seventy five normal women as controls were enrolled in this study. The genotypes were screened by polymerase chain reaction-On/off switch and the product was isolated by electrophoresis on a 2.5% agarose gel containing ethidium bromide and visualized using an ultraviolet transilluminator.

应用On/off Switch-聚合酶链反应及琼脂糖凝胶电泳分离技术分析130例多囊卵巢综合征患者及175例对照组妇女TNF-α基因rs3179060C/A多态，比较rs3179060C/A两组等位基因及基因型与PCOS及其高雄激素之间的关系。

Polymorphisms in ESRa gene and association with egg production traits The SSCP detection of 5" flanking regulation region and intronl in ESRa gene showed that two genotypes were detected in 5"flanking regulation region of blue eggshell chicken.

ESRa基因多态性与产蛋性状关系 ESRa基因5侧翼调控区和内含子1区经PCR-SSCP检测，发现绿壳蛋鸡5例翼调控区有两种基因型，两等位基因C的频率为0.86，D的频率为0.14。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。