查询词典 DNA

The results showed that the four treatments of cytochrome c supplemented with ATP all suppressed the pollen germination and pollen tube growth, and induced nuclear DNA degradation, different treatments with different ratios of double nuclei, single nucleus, and no nuclei. Treatment with heavy concentration of ATP also restrained pollen germination and pollen tube growth, but can not induced nuclear DNA degration.

结果表明，细胞色素c和ATP混合处理的四个组合都能抑制离体花粉萌发和花粉管生长，并且引起了花粉管核DNA的降解，不同处理中双核、单核及无核花粉管所占比率存在明显差异；高浓度ATP虽能抑制花粉萌发和花粉管生长，但不能引起花粉管核DNA的降解。

With eggs and children artemia were detedcted using nested-PCR. WSSV positive products could be detected in artemia, and DNA sequence of the product accords with the designed specific amplified one according to sequence analysis. The positive rates of wild brine shrimp and filial generation were 58% and 43%, respectively. However, it seems to be no regularity between parents and filial generations positive results. It may not judge whether WSSV could vertically transmit in artemia or not.

检测结果显示：卤虫中可扩增出特异性的、与引物设计吻合的DNA片段；DNA测序分析表明，扩增片段的DNA序列与白斑综合症病毒序列一致；野生卤虫携带白斑综合症病毒的阳性率为58％，实验条件下野生卤虫的后代的阳性率为43％；同一卤虫家系中，亲代与子代携带病毒的情况不完全一致，不能确定白斑综合症病毒可否通过繁殖在卤虫世代间进行垂直传播。

But, when in the case only has the bones of the dead preserves, the DNA technology appears palely, the various countries medical examiner scientists all hoped also can use the DNA technology in the skeleton examination, obtains the accurate conclusion.

但， 当在案件只有死的蜜饯的骨头， DNA 技术苍白地出现，全部被希望还能使用DNA 技术在最基本的考试的各种各样的国家医疗检验员科学家，获得准确结论。

It also can be used as alternative antigen of newgeneration vaccine.In this experiment,we screen the major protective antigen hsp65 gene of MAP in order to developnew vaccine especially the DNA vaccine for the prevention of paratuberculosis disease.The hsp65 genewas amplified from MAP C-2 chromosomal DNA by using the PCR technique.We gained a hsp65 gene of 1 626bp.Then PCR product was cloned into pGEM-T vector by T-A clone technique and therecombinant clone was identified by plasmid size,enzyme digestion and PCR identification.The cloneplasmid of pGEM-T- hsp65 was successfully constructed.The nucleotide sequence and deduced aminoacid sequence ofclone gene was analyzed by DNASTAR software.The result indicated that the size ofhsp65 gene consist with M.paratuberculosis K-10 strain in GenBank and the sequential homogeneityreached 99.1%,the amino acid homogeneity reached 99.3%.The preceding analysis indicated that thehsp65 gene was very conservative in M.paratuberculosis.

为了研发预防副结核病的新型疫苗尤其是DNA疫苗及相关蛋白功能，本研究选择了MAP的主要保护性抗原Hsp65蛋白，以副结核分枝杆菌C-2株染色体DNA为模板，以hsp65基因的特异性引物进行PCR扩增，获得了1 626bp的hsp65基因，通过T-A克隆技术，将PCR产物克隆至pGEM-T Vector中，以质粒大小、酶切分析、PCR扩增及序列分析鉴定重组克隆，成功地构建出克隆质粒pGEM-T-hsp65，以DNASTAR软件分析了所克隆基因的核苷酸序列和推导的氨基酸序列，结果表明，所获得的hsp65基因与GenBank中MAPK-10株该基因核苷酸大小完全一致，两者核苷酸序列的同源性为99.1％，氨基酸序列的同源性为99.3％，表明该基因在副结核分枝杆菌中高度保守。

This method can be used to measure the HBV DNA and other pathogenic dNA.

该方法可用于HBV DNA以及其他病原体DNA的定量。

It was interesting that positive perc entage of the autoantibody against histone proteins was higher than that of autoantibody against ds-DNA or ss-DNA in the early stage of the chronic C.jejuni infection, too.

在慢性肠道感染早期小鼠抗组蛋白抗体的阳性率也高于抗ds-DNA和ss-DNA抗体。

MOTIVATION: The rapid growth of DNA sequence data creates a need to find graphic tools to study DNA sequence in a perceivable form.

动机：快速增长的DNA序列数据产生了一个找寻可视化工具，以一个可感知的形式来研究DNA序列的需要。

This paper study mainly on synthesis, crystal structure, antitumor of quinolone compounds containing palladium, and synthesis, crystal structure of norfloxacin picrate supremolecular compound. The interaction of quinolones with DNA and the factors which effect interaction of quinolones with DNA also were studied. Meanwhile the interaction between phenthroline metal complex and DNA were studied by spectroscopy.

本论文主要研究了喹诺酮钯化合物的合成、晶体结构和抗癌活性；研究了喹诺酮与DNA之间的相互作用及影响因素；用分子静电势参数法研究了喹诺酮药物的定量结构-活性关系。

Please plotting the logarithm of the DNA fragment sizes versus the migration distances on the plotting paper below, and calculate the sizes of the DNA fragments.

请以DNA片段大小的对数对移动距离作图於所附的作标图中，并计算DNA片段的大小。

Purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA.

DNA和RNA中的嘌呤碱，与DNA中胸腺嘧啶和尿嘧啶成对。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。