dna restriction meaning in English
dna限制
Examples
- Errors intrinsic to the testing systems , such as the inability to precisely measure dna restriction fragment lengths , are well compensated for by interpretation guidelines which take these kinds of errors into account
鉴定系统本身固有的误差，如不能精确的测量dna限制酵素片段长度，可以由解释规则来很好的弥补，因为解释规则会考虑到这些种类的误差。 - 1 . because the taxonomic division is rather complex and has been much disputed and revised , in this part , we will review the classification and phylogeny of families , subfamilies and tribes of anseriformes based on morphology , ethology , osteology , mitochondrial and nuclear dna restriction fragment length polymorphism , single - copy nuclear dna hybridization and the sequences of mitochondrial gene analysis referring to the different definition , classification and phylogenetic relationships of the families , subfamilies and tribes of anseriformes . the controversial questions and deficiency in the systematic studies of anseriformes were pointed out
具体包括以下几个部分： 1 、针对雁形目鸟类异常复杂的分类状况及分类上存在的争议，根据雁形目鸟类的形态学、行为学、骨骼学、角蛋白、线粒体与核dna酶切片段长度多态、单拷贝核dna - dna杂交及线粒体基因dna序列分析等方面的研究，对雁形目鸟类分类中科、亚科和族的划分及其相互间的系统发生关系进行综述，分析系统学研究中存在的不足，提出了雁形目鸟类分类中急需解决的问题。 - We found that sit variant gene ( slt2vha ) was identified in strains e . coli o157 : h7 isolated from patients and dung beetles 2000 in xuzhou city , jiangsu province . the primers used for stx2 variant analysis are shown in tablel . genomic dna restriction fragments digested by pstiwere sonthern - blotted and hybridized with an stx2 - specific dna probe . the probe was prepared fromed a 285 - bp pcr productof the strain 882364 stx2 gene obtained by using the specific primer pair ( tablel )
2000年在江苏省徐州市铜山县腹泻病患者的粪便标本分离的10株产生志贺毒素的菌株以及从蜣螂肠道分离到的4株产生志贺毒素的大肠杆菌o157 ： h7 ，属于另两个pfge型，和1986 、 1987 、 1988年在徐州市腹泻病患者的粪便标本分离的菌株pfge图谱不同。