诱变的

In this paper, the effect of the absorption spectrum radiated by laser, ultroviolet and red light on DNA has been studied.

激光对生物的诱变遗传效应的研究，本质是激光与 DNA相互作用的结果。

Crystallographic, biochemical, and mutagenic experiments show that the unliganded PDZ domains are inhibitory and suggest that OMP binding per se is sufficient to stabilize the relaxed conformation and activate DegS.

检晶仪，生化和诱变实验表明未连接配体的PDZ区域处于抑制状态，这说明OMP的结合足够维持R态的稳定并激活DegS。

In order to identify the mechanism of melanic mutant of S. exigua, genetic regulation on pupae body color, puparial exuviae, phenoloxidase activity, dopamine andβ-alanine of SEW and SEM were investigated.

本文以SEW和SEM为材料，分别从蛹黑色性状的遗传规律、多酚氧化酶活力、电镜分析、高效液相分析、多巴胺和β-丙氨酸的微量注射及饲喂诱变几个方面进行了研究，以期找出甜菜夜蛾黑化的机理。

OBJECTIVE: We prospectively investigated whether meat type, cooking method, doneness level, and intake of specific meat mutagens and heme iron are associated with lung carcinoma.

目地：我们对肉的类型、烹调方法，煮熟程度以及特殊的肉类诱变剂和血红素铁的摄入是否与肺癌有关进行了前瞻性研究。

An agent, such as ultraviolet light or a radioactive element, that can induce or increase the frequency of mutation in an organism.

诱变剂有机体中的一种可诱发或者增加突变的次数的因子，如紫外线或放射性元素

Crops of Brassica napus L., Linum usitatissmum L., Allium fistulosum L. and Lens culinaris Medic. were irradiated by 80 MeV/u 12C6+ ion beams with doses of 30, 90 and 180 Gy. The germination rates and heights of seedlings of M1 and M2 generation of these four plants were studied.

以能量为80 MeV/u的12C6+离子为诱变源辐照油菜、胡麻、大葱和兵豆的干种子后，研究了不同剂量处理对4种农作物M1和M2代种子出苗率及幼苗生长的影响。

Crops of Brassica napus L., Linum usitatissmum L., Allium fistulosum L. and Lens culinaris Medic. were irradiated by 80 MeV/u 12C(superscript 6+) ion beams with doses of 30, 90 and 180 Gy. The germination rates and heights of seedlings of M1 and M2 generation of these four plants were studied.

以能量为80MeV/u的12C(上标 6+)离子为诱变源辐照油菜、胡麻、大葱和兵豆的干种子后，研究了不同剂量处理对4种农作物M1和M2代种子出苗率及幼苗生长的影响。

It was thought that space induction caused the variation of size, fertility and the abnormal meiosis.

分析认为花粉的大小差异和花粉的育性与减数分裂异常有关，而这些现象都是航天诱变造成的

Using the mechanism of the nuclear reaction of accelerated 7Li +3 ions with the inner target in mutant material i.e 1H( 7Li, 7Be)n, the biological effects were studied. The wheat seeds were irradiated with the doses ranged from 1.416×10 10 ions/cm 2 to 1.416×10 12 ions/cm 2. It was found that the cell membrane ruptured, the plasmolysis occurred, the nucleus shape changed.

将加速器7Li+ 3 离子束与生物体内遗传物质发生1H( 7Li，7Be)n内靶特征核反应诱发核酸分子结构变化的机制应用于生物诱变，辐照剂量在 1 41 6× 1 0 10 粒子 cm2 - 1 41 6× 1 0 12 粒子 cm2范围内处理的小麦，观察幼苗叶片细胞亚显微结构，发现离子束注入引起了细胞膜的破裂，细胞发生质壁分离，细胞核形状变得不规则等。

Key words:Normal butyl alcohol extraction; Ames; Fluctuation test; Sensitivity

因此这些方法是较好的化学物质诱变活性评价的试验方法。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。