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The single micronucleus and multi-micronucleus were observed at the interphase. The chromosome aberrational cells including chromosome fragment, lagging chromosome, chromosome bridge and circular chromosome were found during the mitosis. RAPD analysis of seedling genomic DNA variation in M 2 generation of three mutants showed their DNA sequences had changed. The result confirmed that the implantation of 7Li +3 ions could induce genetic mutation in wheat.

对幼苗根尖细胞学研究观察，获得单桥、双桥、桥断裂、落后染色体、三级、断片和微核等畸变类型；对已获得的小麦突变株，分别进行M2 代DNA分子的RAPD分析，结果发现DNA均发生变异，证明7Li+ 3 注入通过内靶核反应能够诱发小麦在分子水平上产生遗传变异。

Endangered Abies yuanbaoshanensis will probably have been extinct,so it very necessary to studying its genetic diversity with a proper way in order to save this key group of biological diversity in China.In the present study,AFLP(amplified fragment length polymorphism) markers was used to examine population of Abies yuanbaoshanensis in order to understand the level of population genetic variation and genetic structure.

首先，物种的遗传多样性是长期进化的结果，是其生存和发展的前提，对遗传多样性进行研究可以为分析濒危物种或种群的进化潜力和未来命运提供重要资料；其次，遗传多样性是保护生物学研究的核心之一，不了解种内遗传变异大小、时空分布及其与环境条件的关系，就无法采用科学有效的措施来挽救濒于灭绝的物种、保护受到威胁的物种，对珍惜濒危物种制定合理的保护方针和策略，有赖于对物种遗传多样性的认识。

The leading type of chromosome aberrations was acentric fragment. Conclusion There is no direct relation be...

结论染色体畸变的主要类型是断片，染色体型畸变与有害作业工龄之间无明显的正相关，但随年龄增加有增高趋势。

The major type of chromosome aberrations was acentric fragment (ace, 59.3%).

染色体型畸变以断片为主(ace，59.3%)。

Acephala By using SCR specific primers based on the NH_2-terminal region of SCR proteins and anchored oligo_(18) primer, SCR cDNA fragment was isolated from Brassica oleracea var.

然后，利用甘蓝SCR_(13)的5'非翻译区和3'非翻译区设计SCR_(13b)的特异性引物，获得了羽衣甘蓝SCR_(13b)编码区序列。

The method is to use glutamate with certain concentration to induce DNA injury of PC12 cell line and observe the effect of agmatine on DNA fragment and mitochondrial function simultaneously.

在用一定浓度的谷氨酸诱导PC12细胞DNA断裂的同时，观察胍基丁胺对其DNA断裂和线粒体功能的影响，发现胍基丁胺能明显减轻谷氨酸诱导PC12细胞DNA断裂并能改善线粒体功能。

While the new doctrine seems almost certainly correct, the one papy rus fragment raises the specter that another may be unearthed, showing , for instance, that it was a posthumous production of the Danaid tetr alogy which bested Sophocles, and throwing the date once more into utt er confusion.

数据资料已被统计出来，或被重新统计出来，以便证明在文体学这方面，《乞援衰女》实际上确实在《波斯人》和《七雄攻忒拜》（后两者现在则变成了&原始&的剧作）之后以及在轴残片却唤起了一种幽灵似的疑虑，即另一块残片有可能再度被挖掘出来，并证明，比如说，《乞援衰女》是作者藉以击败索福克勒斯的《达那特四部曲》的一部死后出版之作，从而将创作年代再度置于极度的混乱之中。

Its mechanism strength and hot stability big city ratio commonness flat plate glass high,inspite of fracture know clearly,fragment submit analogy alveolate obtuse angle smallness grain,not easy injury human,it is versus his heat treatment to it was application compare expand'one strain security glass that so .modern times produce craft prime,but his operate refuse be out of condition to ConTRoL,effort of both especially yes uniformity be heated and celerity cooling.

它的机械强度和热稳定性都比普通平板玻璃高，即使破碎了，碎片呈类似蜂窝状的钝角小颗粒，不易伤人，所以是应用较广的一种安全玻璃。现代生产工艺主要是对其热处理，但其操作却不好控制，尤其是均匀受热和快速冷却。

The recombinant expression plasmids were constructedby fusing theHNP-coding fragment with intein and only the amidation of HNP-2 might beobserved.

通过对HNP-1，HNP-2和HNP-3的研究，在对HNP-2的酰胺化修饰上已获得一定进展。

The recombinant expression plasmids were constructed by fusing the HNP-coding fragment with intein and the amidation of HNP-2 might he observed.

本文采用了一种新的酰胺化方法，即将intein与HNP-2融合表达，intein对目的短肽进行酰胺化修饰。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。