查询词典 mutagenic

Many of these components are toxic , mutagenic and carcinogenic.

许多化合物是有毒性的，致突变的和致癌的。

The result showed that the mutagenecity of water increased in all samples treated with chlorine, while mutagenic potential was negative in source water samples not treated with chorine.

水样采自某单位自备水源。试验结果表明，未氯化自来水有机提取物致突变反应阴性，加氯自来水样诱发沙门氏菌致突变率升高；在一定范围内，随氯浓度增加，不会显著增加水样的致突变性。

Results and Conclusion : The result s showed that the concent rated substances of all samples have mutagenic effect .

结果与结论：结果发现：各水样的浓缩物均具有致突变作用。

A mutagenic chemical that causes deamination and conversion of several bases into abnormal bases.

能引起脱氨基和将几种碱基转变成异常碱基的诱变性化学物质。

Uracil also can be introduced by hydrolytic deamination of cytosine which paired with guanine. Highly mutagenic dU:dG mispair may cause a C→T transition mutation upon replication if it was not repaired.

另一种可能则是由胞嘧啶(Cytosine； C)发生自发性或氧化脱胺反应而形成尿嘧啶与鸟粪嘌呤的配对错误。

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。

The endermic LD50 to rat and mouse were 926 mg/Kg and 1210 mg/Kg respectively. The results of subscute toxicity test in rats showed that the content of blood urea nitrogen in exposure groups was higher than that in control group, the histopathological changes of testis observed in exposure groups were obvious. Mutagenic tests including bacillus subtilis DNA rec-assay, micronucleus ...

其大、小鼠经皮LD_(50)分别为926mg/kg和1210mg/kg；大鼠90天经皮染毒，试验组BUN含量高于对照组，光镜下，试验组睾丸的组织学结构有明显改变；枯草杆菌DNA重组试验、小鼠骨髓多染红细胞微核试验和小鼠睾丸染色体畸变分析试验均获得阳性结果。

The mutagenic effects of glucoside peptide injection on rats were studied by three experiments.

通过Ames试验、骨髓细胞微核试验和小鼠精子畸形试验研究了苷肽注射液对鼠致突变作用的影响。

MLA test may be a complementary method used to detect the mutagenic effect of hair restorer.

小鼠淋巴瘤细胞试验可做为毒性较大育发剂的遗传毒性筛检的补充试验。

For some dyes, the dye concentration of less than 1ppm in receiving water bodies is highly visible, so that even small quantities of dyes can color large water bodies. This not only affects aesthetic merit but also reduces light penetration and hydrophyte photosynthesis. In addition, some dyes or their metabolites are either toxic or mutagenic and carcinogenic.

某些染料在浓度低于1ppm时就能使接受水体明显着色，所以即便是少量的染料也会污染大面积水体，这不仅影响了水环境的美观而且会减少水体透光量，进而影响水生植物的光合作用，况且，有些染料或其降解产物有毒，甚至能诱发基因突变或致癌。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。