查询词典 DNA

ConclusionFQ-PCR technique is valuble to confirmed the various forms lesion of early syphilis untreaed.The technique is suitable for detection the whole blood of syphilis with chancre in late stage or with the lesion of secondary syphilis in early stage.The treponema pallidum DNA remains long-term stability at room temperature.It is possibly valuable for using the technique to explore the indirect route of transmission of syphilis.

FQ-PCR技术适用于确认未经治疗的形态各异的早期梅毒疹；对一期梅毒后期或二期梅毒早期患者血中梅毒螺旋体DNA检查有价值；梅毒螺旋体DNA在常温下可长期保持稳定；该技术对探明梅毒间接传播途径可能有价值。

RFLP and AFLP could be employed to make the linkage map and gene tagging by using the change of base pairs and the molecular rearrangement in restriction sites in specific restriction sites of DNA.

RFLP和AFLP技术利于花生图谱构建，利用DNA中特定的限制性酶切位点上碱基对的改变及酶切位点之间的分子重排，可以发现花生品种间的DNA许多多态性位点，进而绘制分子标记图谱。

DNA quantity extracted by the two methods was similar to that by phenol/chloroform methods.

两种方法提取的DNA量与用苯酚/氯仿提取DNA的量相似。

Chromatin structure is a key control point in eukaryotic gene expression and DNA replication and DNA repair.

在真核细胞进DNA复制与修的过程中，染色质结构的改变扮演著重要的角色。

DNA fingerprinting of Wistar rat were studied with JL-02 Mulilocus probe and Southern hybridization,and comparing with different individuals of nine groups Wistar rat from six national classical area and different groups.

采用JL-02多位点探针和Southern杂交对Wistar大鼠基因组进行了DNA指纹分析，并对国内最具有典型的6个地区9个Wistar大鼠群体内和群体间进行了DNA指纹分析比较。

Total genomic DNA was extracted from four marine fishes (Verasper variegates, Cleisthenes herzensteini, Turbot Scophthalmus maximus, red seabream Pagrosomus major) using a proteinase K and phenol-chloroform procedure. Long mtDNA fragments were amplified by long and accurate PCR using primers designed based on the mtDNA sequenses of Thunnus thynnus thynnus, flounder Paralichthys olivaceus and other related fishes.

用蛋白酶k酚氯抽提法从圆斑星鲽、高眼蝶、大菱鲆和真鲷4种海水鱼的肌肉组织中提取基因组DNA，根据金枪鱼、牙鲆及相关鱼类的线粒体DNA序列保守片断设计出扩增引物，扩增从16SrRNA到ND4之间约9400bp的mtDNA长片段。

The cell to cell contact could facilitate the transformation. It was found that the B. subtilis strain, cultured not only in MM medium, but also in LB medium, could be transformed by cell released or chemically extracted DNA by the method of agar plate transformation, although the LB medium was previously believed not to support this process in traditional transformation protocol.

结果表明，该菌在这两种培养基中培养时均可在对数生长期向培养液中主动分泌有生物活性的DNA，且细胞间接触有利於转化过程的进行，暗示在本实验条件下DNA供体细胞可能具有某种主动功能。

The biological oxidative ability on DNA of the standard quartziferous dust and crocidolite, which is the carrier of inhaled particles in air pollution, and over ten kinds of metals and those combine and competitive reactions with DNA and chelators have been studied in order to know the role of standard quarziferous dust, crocidolite and metals in the pollution systems.

并对重要的大气污染物可吸入颗粒物的载体石英粉尘和青石棉及其承载的十余种金属离子介导活性氧氧化核酸的作用，金属离子与DNA分子和螯合剂的结合作用与竞争反应，探讨了石英粉尘和金属在污染体系中的作用。

Compared to BMVC,9E-BHVC has many better features needed by a two-photon probe,such as larger two-photon action cross sections,stronger affinity to DNA and better water-solubility.

BMVC和9E-BHVC在DNA中有较高的量子效率(23.6%和38.9%)和大的活性吸收截面(45.08 GM和90.64 GM)，且对DNA具有高的亲和力结合常数分别为5.2×10~6M(-1和7.8×10~6M~(-1)。

However, the soil-borne plant pathogen Agrobacterium tumefaciens uses the type IV secretion pathway to deliver its oncogenic T-DNA that causes crown gall tumors on many plant species.

作 者将介绍加vir基因的诱导、T－DNA的加工、T－DNA的转移，以及 T－复合体运输的装备等方面的最新研究进展，以探讨农杆菌－植物间基因转移的分子基础。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。