查询词典 polymorphism

The biological polymorphism of Cercospora zeae-maydis was studied systematically in the levels of histology, protein and DNA. The major characters in polymorphism of pathogen were listed as follows:(1) The great differences were seen in shapes and sizes of conidiophores, the growth velocity of mycelium and pigment-productivity of colony among pathogen strains. In addition, an albino strain, a kind of mutant, was casually discovered during isolation of pathogen from diseased plants, which supported strongly our previous prediction that there should be some potential genetic variation in Cercospora zeae-maydis.

本研究在组织学、蛋白质和DNA水平上，系统研究了玉米灰斑病菌的生物学多态性，这种多态性主要表现在以下几个方面：①病菌形态学和培养性状多态性：菌株间存在分生孢子形态、菌丝生长速度、菌落产色素能力等方面的差异，该病菌在自然界存在另一种变异类型——白化菌株，说明灰斑病菌的确存在遗传变异的潜能。

Methods: TaqIB polymorphism were analyzed by PCR-RFLP in 91 primary hypertension patients and the effects of hypertension and TaqIB polymorphism on cerebrocardiac vascular disease were studied.

用PCR-RFLP分析91例原发性高血压病患者及33例正常对照组CETP TaqIB基因多态性，并对两组心脑血管事件进行分析。

Based on 16 primers which are of stable polymorphism selected from 200 random primers, RAPD polymorphism of 38 Chimonanthus praecox cultivars was analyzed.

从200个随机引物中筛选出16个多态性稳定的引物，对38个蜡梅品种进行遗传多样性和亲缘关系RAFD分析。

The amplified fragment length polymorphism technique was used to assess the genomic DNA polymorphism of four species Emberiza (cioides, leucocephala, tristrami and spodocephala). Eleven pairs out of thirty-nine AFLP primer pairs produced reproducible polymorphic DNA amplification patterns.

利用扩增片断长度多态性技术分析了鹀属4种鹀（三道眉草鹀Emberiza cioides，白头鹀Emberiza leucocephala，白眉鹀Emberiza tristrami，灰头鹀Emberiza spodocephala）基因组DNA的多态性。

The amplified fragment length polymorphism technique was used to assess the genomic DNA polymorphism of four species Emberiza (cioides, leucocephala, tristrami and spodocephala)Eleven pairs out of thirtynine AFLP primer pairs produced reproducible polymorphic DNA amplification patterns.

利用扩增片断长度多态性技术分析了鹀属4种鹀(三道眉草鹀Emberi za cioides，白头鹀Emberiza leucocephala，白眉鹀Emberiza tristrami，灰头鹀Emberiza spodocephala)基因组DNA的多态性。

Methods 209 patients with CHD and 101 controls were selected. MTHFR genetic C677T polymorphism was determined by PCR-RFLP, and CBS T833C polymorphism by ARMS method. Plasma homocysteine levels were detected with HPLC. Results The frequencies of MTHFR T homogenetic type and heterogenetic type (27.8%and 45.4%) in case group were higher than those in normal group(22.8%and 34.6%).

对209例冠心病患者和101例健康对照者，采用多聚酶链反应-限制性内切酶片段长度多态性技术检测MTHFRC677T基因型，用扩增阻滞突变体系法检测CBS基因T833C多态性，采用高压液相色谱法测定同型半胱氨酸血浆水平。

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％。

Objective To detect DNA polymorphism of Papaver somnferum L using fluorescent Amplified Fragment Length Polymorphism.

目的 利用荧光AFLP检测技术检测罂粟植物DNA多态性。

In this text, comparing the yak with other genus of Bovinae on paleontology evidence, morphologic character, blood protein polymorphism, microsatellite polymorphism, mtDNA sequence variance, rDNA RFLP data and sequence information of function gene, we find that the yak shows difference in Bos taurus, Bos indicus but close with Bison bison either in paleontology evidence, morphologic character or molecular biology character. So it was better to be considered as one independent genus Poephagus than to subgenus Poephagus or a species of Bos.

本文通过对牦牛与牛亚科其他属在古生物学证据、形态学特征、血液蛋白多态性、微卫星多态性、mtDNA序列变异、rDNA的RFLP数据和功能基因序列信息等各方面研究资料的比较分析，发现牦牛无论在古生物学证据、形态学特征，还是在分子生物学特征上均表现出与牛属中的普通牛Bos taurus、瘤牛Bos indicus不同，而与美洲野牛Bison bison的亲缘关系更近一些，因此将牦牛划分为牛亚科中1个独立属，似乎比将牦牛作为牛属中的1个亚属或1个种更合适。

The genotypic polymorphism and polygenetic affinities of intergenus, interspecies and intraspecies among 21 strains from 6 yeast genus were studied with random amplified polymorphism DNA analysis.

采用随机扩增多态性DNA分子标记对6个属的21个酵母菌株的基因组DNA的多态性进行了研究，并采用聚类分析法评价它们之间的亲缘关系。

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。