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1)  Precursors of mutants
致突变前体物
2)  mutaginicity
致突前体物
3)  chlorinated mutagenic precursors
氯化致突变前体物
1.
Taking specific activites of water sample as assessments index, the abilities of different water purification unit processes to remove chlorinated mutagenic precursors were assessed from the results of Ames test and the features of the precursors.
采用水样比活性作为评价指标,从Ames试验结果和致突变前体物性质两方面,探讨了不同单元净水工艺对Ames试验氯化致突变前体物的去除能力,从而为净水工艺的选择提供参考依据。
4)  mutagens
致突变物
1.
Removal of organic substances and Ames mutagens from drinking water using both O_3 + AC and membranes process;
饮用水中有机物和Ames致突变物的去除
2.
Expermental results of the effect and mechanism of removing TOC and Ames mutagens from drinking water using AC NF process showed that the adsorptive ability of AC was limited,depending on the characters of AC and the organic matters in drinking water.
分别以地表水和地下水为水源的水厂出水为研究对象 ,探讨活性炭 纳滤膜工艺对饮用水中总有机碳和Ames致突变物的去除效果及机理 。
3.
The source water and effluents of five kinds of water purification process were studied by Ames tests,the results show that bioceramic can remove direct mutagens partly,and decline the MR value of the raw water.
具有生物陶粒及活性炭吸附单元的B、C、E流程,对去除水中直接致突变物最为有效,使TA98及TA100菌株在各试验剂量下的MR比值均小于2。
5)  mutagen [英]['mju:tədʒən]  [美]['mjutədʒən]
致突变物
6)  mutagenic compounds
致突变物质
1.
This review summarizes several different types of the mutagenic compounds distributed in foods and their chemical structures.
概述了食品中分布的致突变物质及其化学构造。
补充资料:隐性突变体
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性质:尽管发生某个等位基因突变,但由于相应的显性等位基因的存在而无法显示突变表型的二倍体生物。一般认为显性基因能产生有功能的产物,而它的隐性突变等位基因则不能。故当显性等位基因存在时,细胞具有正常表型,只有当隐性突变基因纯合化时(即显性等位基因不存在时)细胞才显示其隐性突变表型。隐性突变型可以是二倍体生物,也可是异核体或部分二倍体生物。对一个隐性致死突变基因来说,它可在二倍体生物中与相应的显性等位基因以杂合状态保存下来,但不能以纯合状态保存,更不能在单倍体生物中保存。

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