有些DNA的变化是自然发生的不会产生有害影响；这些在一个群体中的变化被称为多态性。
Some changes in DNA occur naturally and lead to no harmful effects; these changes in a population are called polymorphisms.
这些在一个群体中的变化被称为多态性。
群体分析表明，该多态性位点与耐湿性呈极显著相关，它所解释的耐湿性表型变异为13 9%。
This locus showed significant correlation to waterlogging tolerance of the population, explaining 13 9% of total phenotypic variation.
结论D 12s1686位点具有较高的杂合度和多态信息含量，在基因连锁分析和群体遗传学研究中具有重要的应用价值。
Conclusion: D12S1686 is such a valuable genetic marker that it can be used to gene linkage analysis and population genetics research.
与野生群体相比，养殖群体的多态位点比例和杂合度都有不同程度的降低。
Compared with the wild population, the cultivated population has a lower percentage of polymorphic loci and heterozygosity.
利用微卫星DNA在萨福克羊群体中的多态性预测绵羊群体的肉用性能。
The meat performance of Suffolk sheep population was forecasted by polymorphism of micro-satellite DNA.
应用聚合酶链式反应（PCR）、多重PCR方法检测GSTM1和GSTT1在正常人群和结直肠肿瘤患者群体中的基因多态性分布。
The frequencies of GSTM1-null and GSTT1-null genotypes in colorectal tumor and control groups were ascertained by using polymerase chain reaction (PCR) and multiple-PCR techniques.
这里我们采用高度多态的遗传标记更好的解决了欧洲鳗鲡的群体遗传结构分析的问题。
Here we have used highly polymorphic genetic markers that provide better resolution to investigate genetic structure in European eel.
同时表明，研究群体间遗传及遗传变异程度，血清蛋白多态性是一种切实可行的方法。
At the same time, we can infer that serum protein polymorphism is a practical method used for studying the degree of heredity and variance.
目的研究D2S1399和D5S2500基因座在中国华东地区汉族群体遗传多态性。
Objective To obtain the genetic polymorphism data of two STR loci D2S1399 and D5S2500 in Eastern Chinese Han population.
为探讨2型糖尿病和非糖尿病群体间的遗传多态性差异，寻找2型糖尿病的致病相关基因。
To explore the genetic polymorphic difference between Type 2 diabetes and non diabetes controls, and to find out the related disease genes of Type 2 diabetes.
目的调查y染色体7个STR位点及单倍型的遗传多态性并分析其群体差别。
Objective To investigate the genetic polymorphism of7Y-STR loci and haplotypes and analyze their population difference.
利用所筛选的多态性标记对BC_1F_1群体进行前景检测，检测到161个供体片段，并对含有供体片段的单株进行背景选择和回交。
Doing foreground selection of BC_1F_1 with polymorphic locus, 161 donor segment were detected, and doing background selection and backcross for plants containing donor segment.
群体遗传学分析发现，所检测到的多态位点基因型频率分布与品种相关联。
Population genetics analysis, Detected by genotype frequency distributions of the polymorphic loci is associated with species.
目的从群体角度探讨胰岛素抵抗与胰岛素受体基因多态性的关系。
Objective To understand the role of insulin-receptor gene in the development of insulin resistance on a population-based study in China.
目的探讨广东汉族群体hla抗原多态性分布的情况。
Objective To study the polymorphism of HLA antigen in Guangdong Han nationality.
群体遗传多态性分析表明，5个绵羊品种的多态信息含量均为中度多态；
Population genetic polymorphism analysis showed that the polymorphism information content (PIC) of the 5 sheep breeds was moderate.
作为第三代DNA多态性标志，单核苷酸多态性能在一定程度上反映人类个体或群体的特异性。
As the third generation symbol of DNA polymorphism, single nucleotide polymorphism can reflect specific individual features in some extent.
STR作为遗传多态性较高的标记，被广泛地运用于群体遗传学的研究。
As high polymorphism markers, STR loci have been widely used in studying population genetics.
结果表明，11个Y-STR基因座在满族群体中具有较好的遗传多态性，适用于当地区的法医学应用。
The genetic distribution of 11 Y-STR loci in Liaoning Manchu population showed favorable polymorphisms, and was thus suitable for forensic identification and paternity testing in local area.
结果RAPD标记检测得到的群体遗传相似系数和多态位点比率分别为0.942和26.98%；aflp标记检测得到的群体遗传相似系数和多态位点比率分别为0.874和31.4%。
Results the rates of the polymorphic loci and the genetic similar index of population by RAPD marker were 26.98% and 0.942 respectively, and that by 31.4% AFLP and 0.874 respectively.
结果RAPD标记检测得到的群体遗传相似系数和多态位点比率分别为0.942和26.98%；aflp标记检测得到的群体遗传相似系数和多态位点比率分别为0.874和31.4%。
Results the rates of the polymorphic loci and the genetic similar index of population by RAPD marker were 26.98% and 0.942 respectively, and that by 31.4% AFLP and 0.874 respectively.
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