查询词典 polymorphism

Insect melanism is one of the common polymorphism in nature, and has become classical study system for species evolution and adaptability.

昆虫黑化是自然界中普遍存在的一种多型现象，也成为揭示物种在自然界中进化与适应的经典范例。

Objective To study the changes of plasma fibrinogen level and Fg metamer polymerization velocity in children with simple obesity and explore the relationship between simple obesity and Fg Bβ448 G/A gene polymorphism in children.

目的 研究单纯性肥胖儿童血浆纤维蛋白原水平及纤维蛋白原单体聚合速度变化，探讨儿童单纯性肥胖与Fg及其Bβ448 G/A基因多态性的关系。

Objective To investigate the association between monoamine oxidase A gene polymorphism and violent behavior.

目的 探讨单胺氧化酶A基因与暴力攻击行为的关联性。

22 Of 22 pairs EST-SSR primers from Chinese cabbage/rape respectively had amplification products in soybean,wheat and maize,the rate of amplification was 81.8%,95.4%,100%,respectively;10 of 22 pairs EST-SSR primers showed polymorphism in monocotyledons wheat and maize,13 in dicotyledons oilseed rape and soybean,7 in both monocotyledonous and dicotyledonous crops.

（1）30对小麦EST-SSR引物中，有29，28和26对引物分别在玉米、油菜和大豆中有扩增产物，可扩增率分别为96.7%，93.3%和86.7%；其中分别有12对和9对引物在单子叶作物小麦和玉米及双子叶作物大豆和油菜中的扩增产物显示多态性，有4对引物在4种作物中的扩增产物均显示多态性。

(1)29,28,26 of 30 pairs of EST-SSR primers from wheat respectively had amplification products in maize,oilseed rape and soybean,the rate of amplification was 96.7%,93.3%,86.7%,respectively;12 of 30 pairs EST-SSR primers from wheat showed polymorphism in monocotyledons wheat and maize,9 in dicotyledons oilseed rape and soybean,and 4 in both monocotyledonous and dicotyledonous crops.

基金项目：国家生命科学与技术人才培养基地科技创新基金项目(2007088)；国家油菜产业化项目科学家岗位"化杀岗位"（nycytx-00505）；国家自然科学基金项目(30871578)中文摘要：探讨单、双子叶作物间EST-SSR引物和标记的通用性。选取30对小麦、8对油菜和14对白菜的EST-SSR引物，分别以10个小麦、10个油菜、5个大豆品种和5个玉米自交系的基因组DNA为模板，进行PCR扩增及扩增产物的多态性分析。

The results show that there have 4 monomorphism markers and 13 polymorphism markers among 17 selected microsatellite markers.

结果表明：选择使用17个微卫星标记，其中有4个为单态标记，13个为多态标记。

The results showed that exon 1 had the genotypes of AA, BB and CC, while intron 1 had the genotypes of DD, EE, FF and GG. There existed gene polymorphism in inter-species but not in intra-species. All the test species displayed genetic monomorphism and 100% of purity.

结果表明：外显子1有AA、BB和CC3种基因型，内含子1有DD、EE、FF和GG4种基因型；种间存在基因多态性，种内没有多态性，所有种均表现出遗传的单态性和100%的纯合度。

It showed that 14 microsatellites among all these microsatellites DNA loci, which could be amplified stably, displayed monomorphism among the different individuals of the same stain, but displayed polymorphism among the different stains. Each microsatellite DNA loci had 2-5 alleles. 129/Sv was more polymorphous than other stains at 14 microsatellite DNA loci, but TA1 and TA2 were polymorphous at only D9Mit23 loci.

结果表明14个微卫星DNA具有稳定扩增效果，在同一品系不同个体之间表现单态性；在不同品系之间表现多态性，在每一微卫星位点有2至5个等位基因。129/Sv与其余品系在14个微卫星位点都表现较高的多态性，TA〓与TA〓只在D9Mit23位点表现多态性。

Meanwhile, Tibetan sheep (breeded in Sanjiaocheng of Qinghai, Huangcheng and Gannan of Gansu ), Mincounty Blank Fur sheep and Texel and Poll Dorset were controlled. The results indicated that polymorphism was tested at the loci of Hb, Tf and Es, that erythrocyte protein 1 and 2 were monomorphism. There were a couple of allele and three genotypes at the loci of Hb and Es. There were 10 genotypes at the locus of Tf, which was determined by 5 alleles.

结果表明，青海细毛羊和甘肃高山细毛羊的血红蛋白、转铁蛋白和酯酶基因座上存在丰富的多态性，其中Hb和Es位点受一对等位基因控制，共构成3种基因型；Tf位点受5个等位基因控制，共构成10种基因型；而红细胞蛋白质-1（EP-1）和红细胞蛋白质-2（EP-2）基因座均呈显单态；青海细毛羊的AMY基因座具有AMY1、AMY2、AMY3三种同工酶，其中AMY2呈多态，有AMY2A和AMY2O两种表现型，而甘肃高山细毛羊的AMY呈显单态。

Polymorphism of Rb (intron 17) is relatively stable and rarely mutates, but poly morphism of Rb gene (intron 20) locus is characteristic in the old people. The r elation between Rb gene (intron 20) and ageing needs further study.

老年组Rb基因20内含子的位点多态性与青年组比较差异有显著性意义，是否该位点遗传标记与细胞的衰老有一定的相关性，值得进一步研究。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。