查询词典 mutagens

The analysis of sister chromatid exchange frequencies is a useful tool for the study of damages in genetic material of human beings induced by enviromental mutagens and carcinogens.

用荧光加Giemsa术区分姐妹染色单体，分析了13名中年男子外周血淋巴细胞的SCE，比较吸烟者和不吸烟者"自发"的和用丝裂霉素诱发的SCE频率变化。发现吸烟者的SCE频率(8.33±1.08)显著地高于不吸烟者(4.41±0.72)，p.001。

These flat-ringed planar compounds intercalate with the cells' nucleic acids .and act as frameshift mutagens and carcinogens.

这些平面扁平环形化合物能插入细胞的核酸中并且充当移码突变剂和致癌剂。

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。

The water extracts from Momordica charantia can inhibit mutagenesis caused by mutagens in the test.

在本实验条件下，苦瓜水提取物具有明显的抗突变作用。

The first chemical mutagens to be discovered were the mustard gases used in World War I.

最初发现的诱变剂是第一次世界大战所用的芥子气。

Several studies showed that exposure to the environmental carcinogens and mutagens increased the risk of lung cancer.

很多研究显示肺癌的发生与暴露环境中的致癌物或致突变物有关。

Some potential carcinogens and mutagens have also been identified in irradiated foods.

在辐照的食品中已经鉴定出有一些潜在的致癌及致变物质。

What response has E.coli developed to large amounts of DNA damage by mutagens?

大肠杆菌进化形成了怎样的反应来应对因诱变剂而引起的大量 DNA 损伤？

DNA damage by mutagens has very serious consequences for DNA replication.

由诱变剂引起的 DNA 损伤会在 DNA 复制时带来严重的后果。

The effects of mutagens on the in vitro tissues of two cassava cultivars were studied and the differences in salt tolerance of the plants that had been treated with different mutagens were compared.

研究了诱变剂对2个木薯品种以及离体组织的影响，并且对不同诱变处理植株的耐盐性差异进行了比较。

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。