ZX 1 was a pleiotropic mutant isolated from Streptomyces lividans JT 46 by NTG mutagenesis.

1、

Site-directed mutagenesis can correctly change the base sequence and get mutant proteins.

基因定点突变技术可以精确地改变基因的特定碱基序列,获得突变蛋白质.

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2、

Chemical mutagenesis breeding is an new method to breed crop varieties by chemical mutagenesis.

化学诱变育种是通过化学诱变育成农作物品种的新方法.

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3、

The paper brief talks the drinking water's mutagenesis from organic pollution.

该文从有机物污染方面概述饮用水的致突变性.

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4、

A new altered sites mutagenesis systems for the cloning DNA is described.

本文介绍一种新的变换位点型克隆化DNA谤变系统.

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5、

Mutagenic effects on TA 97, TA 98 , TA 100 , TA 102 were studied in Ames test.

应用Ames试验观察对测试菌株TA97,TA98,TA100, TA102的诱变作用.

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6、

Its advantages are high mutagenic ratio and optimized rate, and high reproduction speed.

该方法具有诱变率高,优选率高等优点, 并且能够迅速繁育苗木,缩短育种年限.

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7、

Conclusion Anti-mutagenic effect of SS was demonstrated in these two different in vitro genotoxicity assays.

结论SS在二项不同遗传终点的体外测试中,均显示出明确抗突变作用.

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8、

These results indicated that the waste water might have strong mutagenic action related to organic pollutant.

提示各厂排放的废水可能具有较强的致突变作用.

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9、

Objective To explore the potential mutagenic action of pullulan on mice.

目的研究普鲁兰多糖的潜在致突变性.

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10、

It had low toxicity no mutagenic effect.

性能稳定、低毒、无刺激性、无致突变作用.

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11、

Objective To investigate the mutagenicity of drinking water and water source in a certain region.

目的探讨某地区各类饮用水及水源水致突变性.

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12、

Objective To study general toxicity, hereditary toxicity and mutagenicity of quaternary ammonium compound detergent.

目的研究季氨化合物洗消剂的毒性、遗传毒性及致突变性.

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13、

Therefore, the sewage discharged from a certain ethylene plant is of significant mutagenicity to fish.

可见, 某乙烯工厂排放的污水对鱼类有明显的致突变作用.

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14、

Nitrated Polycyclic aromatic hydrocarbons are a class of important pollutants with direct mutagenicity.

硝基多环芳烃是一类重要的具有直接致突变性的环境污染物.

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Objective : To investigate the current eutrophication status and mutagenicity of Liwan Lake water.

目的: 摸清广州市荔湾湖水质富营养化现状及其水质的致突变性.

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16、

In ths research , vitro tests of cytotoxicological method was used to evaluate mutagenicity of thallium.

作者用体外实验方法研究了铊的细胞诱变作用.

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Objective : To study the effects of propolis against gene mutation induced by powerful mutagens in mice.

目的: 探讨蜂胶对环磷酰胺等强诱变剂诱发基因突变的抑制作用.

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18、

The method of vicia fabe micronucleus technique is applicable to detect environmental mutagens.

综述了国内外应用蚕豆根尖细胞微核技术检测环境突变物的研究.

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19、

In addition, expression of mutant forms of TRF 2 induced a growth arrest with characteristics of senescence.

此外, 突变体的表达形式的TRF2诱导生长抑制衰老与特点.

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20、

The mutant holds onto its leaves longer than the wild type.

突变体比野生型不易落叶.

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