Insertional mutagenesis is a method for identifying genes by using the integration of DNA as the mutagen, thereby facilitating the cloning of the mutated gene. 插入突变是一种通过外源DNA整合的方式来获得突变体,并克隆得到对应突变基因的方法。
With different concentrations of sewage and aluminum sulfate as a mutagen, pea root tip cells in the mitotic index, micro-rate and the rate of chromosomal aberrations are determined. 以不同浓度的污水和硫酸铝作为诱变剂,测定豌豆根尖细胞的有丝分裂指数、微核率和染色体畸变率。
The result of mice experiment indicated that VC may be a mutagen, and may be toxic in reproduction and memory. 氯乙烯对小鼠有致突变性和一定的生殖毒性,且可能对小鼠的记忆功能有一定影响。
It is well known that formaldehyde ( FA) is a mutagen and mammalian carcinogen. 甲醛(FA)是一种诱变剂,同时也是一种人类的可疑致癌剂。
The utilization of micronucleus test in Vicia faba root tips to detect pesticide and mutagen damage 利用蚕豆(Viciafaba)根尖的微核试验,检测农药和诱变剂损伤
Removal and control of mutagen in contaminated water sources by potassium permanganate 用高锰酸钾去除和控制受污染水源水中的致突变物质
Principal type is micronucleus. It is a mutagen efficient. 畸变类型以微核为主,是一种有效的诱变剂。
Studies on rapidly obtaining high oleic acid germplasm of Brassica napus by mutagen EMS and microspore culture 用EMS诱变和小孢子培养快速获得甘蓝型油菜高油酸种质材料的研究
The pre-ozonation can strengthen the removing effect of mutagen in the subsequent craft. 臭氧预氧化可以强化后续工艺对致突变物的去除效果;
The paper mainly deals with the chromosome-doubling method and mutagen types for medicinal plants and other factors affecting chromosome doubling. 本文着重介绍了当前药用植物染色体加倍所采用的方法、诱变剂类型以及其它一些影响植物染色体加倍的因素。
Protective effect of melatonin on micronucleus formation induced by chemical mutagen 褪黑素对化学诱变剂诱发微核形成的保护作用
Mutagen sensitivity is related to the progression of the tumor; 3诱变剂敏感性与肿瘤的发展阶段有关;
The size and infiltration depth of tumor were positively related to the mutagen sensitivity. 肿瘤的大小(以3cm为界)、浸润深度(以肌层为界)与诱变剂敏感性呈正相关;
Research on Effect of Aerospace Mutagen on Characters of Cotton Variety and Variety Improvement 航天诱变对棉花品种性状影响及品种改良研究
To clone and identify new genes that control the heart development, by a way of chemical mutagen, EMS, we have established 1,200 balanced-lethal lines on chromosome 2 and 3.With the screening the 330 stocks with immunochemical method using heart-specific antibody, Mab. 为了克隆和鉴定控制心脏发育的新基因,本研究利用化学诱变剂甲磺酸乙酯大规模地诱变果蝇,并且建立了1200个第二和第三染色体的平衡致死系,利用心脏组织特异抗体Mab。
4-Nitroquinoline N-oxide ( 4-NQO) is a potent mutagen and carcinogen. 4-NitroquinolineN-oxide(4-NQO)是一种很强的致突变剂和致癌物。
In addition, such method was compared with other genotoxicology method in order to probe into the possibility of utilizing such technology to detect environment mutagen. 此外,还用其他遗传毒理学方法与本方法进行了比较研究,探索利用该技术检测环境中诱变因素的可能性。
Study on Method of Sister Chromatid Exchange in Vicia faba to Detect Environment Mutagen 蚕豆SCE检测环境诱变剂的方法学研究
In this experiment, green tea were used as detected material, alum as the mutagen, the frequency of micronucleus as the index of DNA damage. 本实验以绿茶为材料,以明矾为诱变剂,以微核率作为DNA损伤指标。
The response of individuals to the environment mutagen may be not completely alike. 个体对环境致癌物的反应可能不完全相同,肿瘤的遗传易感性在结直肠癌的发病中起着重要的作用。
The results show that: Different mutagen are suitable for different concentration limits; 研究结果:不同品种的诱变剂适宜浓度范围不同,红色及矮生品种适于低浓度处理。
Aiming at research actuality and development trend of D-ribose fermentation, in this thesis a new evaluating index for mutation was proposed and the optimal mutagen dosage was determined. 针对国内外D-核糖发酵的研究现状及发展趋势,本文提出了评价诱变效果的新指标,并确定了最适诱变剂量;
Objective: To study the relationship of sperm chromosomal aberration and micronucleus in 2 cell embryos in human. Study design: Comparative study of chromosomal aberration induced by mutagen on human sperm and on micronucleus in 2 cell embryos. 采用人精子与去透明带地鼠卵受精方法,分析诱变剂对人精子染色体与2细胞胚微核的比较,以探讨染色体畸变率与微核率间关系。
Long time touching mutagen can cause diseases such as cancer, teratogenicity and genetic deficiency. 长期接触致突变物可引起肿瘤、致畸和遗传缺陷等疾病。
With different concentrations of copper acetic acid as mutagen, we used the micronucleus assay and chromosome aberration assay to determine mitotic index, micronucleus rate and chromosome aberration rate of Vicia faba root tip cells. 采用蚕豆根尖细胞的微核试验和染色体畸变试验方法,以不同浓度的乙酸铜为诱变剂,选择不同的处理时间,测定蚕豆根尖细胞的有丝分裂指数、微核率和染色体畸变率。
The result of sex-linked recessive lethal ( SLRL) test shows genotoxicity to reproductive cells in drosophila induced with DBP-DOP and promote both rates of mutagen and sterility respectively. 伴性隐性致死试验的结果表明;DBP-DOP对果蝇生殖细胞具有遗传毒性;果蝇的致突变率和不育率升高。
When EMS was applied to cotyledons, the rate of induced calli and regenerated plants decreased with increasing of the mutagen concentrations and prolonging of the treatment time. EMS处理子叶后愈伤组织诱导率和植株再生率下降,并随着EMS浓度的升高和诱变时间的延长呈递减趋势。
Arsenic is a known carcinogen and mutagen and is detrimental to the immune system. 砷具有致癌、致突变和致畸性,是一种对免疫系统有害的物质。