显性致死

X射线诱发雄性小鼠生殖细胞染色体畸变及显性致死突变研究

Studies on chromosomal aberrations and dominant lethal mutations induced by X irradiation in germ cells of male mice

小剂量X射线诱发雄性小鼠生殖细胞染色体畸变与显性致死间关系

Relationship between chromosomal aberration of germ cells and dominant lethal mutation in male mice after low dosage of X-irradiation

γ－射线照射小鼠后F1代中的染色体异常和显性致死突变研究

Chromosome Abnormality and Dominant Lethality among the F_1 Generation of Mice after γ - ray Irradiation

~（60）Coγ-射线诱发雄性小家鼠的显性致死效应

The effect of dominant lethals induced by 150 rad ~ ( 60 ) co γ - ray in male mice

本文报道了小剂量（0～1.0Gy）x射线单次全身照射雄性小白鼠诱发的精母细胞晚粗线期染色体畸变与显性致死间关系。

The relationship between chromosomal aberration and dominant mutation in spermatocytes of late pachytene phase in male mice after a single X-irridiation was reported .

Ames试验MR＜2，显性致死试验、致突变指数与阴性对照组比较无显著差异（P＞0.05）均显示阴性反应。

Results also showed negative response , both in Ames test ( MR < 2 ) and in dominant-lethal test ( P > 0.05 ) .

X射线在该期诱发的显性致死突变率是2.1995×10~（-3）/（配子·10mGy）。

The frequency of dominant lethal mutation induced by X - irradiation is 2.1995 × 10-3 gamete · 10mGy .

低剂量氚水诱发雄性小鼠显性致死突变的研究

Dominant lethal mutation in mice induced by low dose tritiated water

新农药嗪胺灵的毒性研究（续）&显性致死突变试验

Toxicity of Triforine ( Continued ) A Dominant Lethal Mutagenic Study

吡啶酸铬对小鼠的显性致死试验结果为阴性；

No significant effect on mice was observed in dominant lethal assay .

氦氖激光照射诱发雄性小鼠的显性致死效应

Dominant Lethal Effect of Male Mice Induced by Radiation of He-Ne Laser Beam

显性致死突变的效应比非整倍体胚胎的效应高。

Theeffect of dominant lethal mutation is higher than that of the aneuploid .

咯萘啶对雄性小鼠的显性致死试验

Dominant lethal test with pyronaridine on male mice

结果：显性致死试验阳性；

Results : Dominant lethal test was positive .

昆明系和Balb/C系小鼠用于显性致死试验的比较研究

Comparative study of Kunming and BALB / c strain mice for dominant lethal test

有机硫农药毒性试验显性致死突变试验

Dominant Lethal Mutation Test of Organic Sulfur

雌性小鼠受小剂量γ射线照射导致非整倍体胚胎和显性致死的研究

Frequencies of aneuploid and dominant lethal mutations in young female mice induced by low doses γ - rays

用半脘氨预先处理，在精母细胞，精子细胞和精虫内均可使显性致死突变值下降。

With cysteamine pre-treatment , decreased yields of dominant lethals were obtained in spermatocytes , spermatids and in spermatozoa .

2GyX射线照射诱发小鼠精子发生各阶段的染色体畸变及显性致死突变

Studies on sperm chromosome aberrations and dominant lethality induced by 2 Gy of X-rays at different stages of spermatogenesis in mice

方法：采用显性致死试验和精子畸变试验的方法研究不同剂量甲基汞对小鼠生殖发育的影响。

Methods The dominant lethal test and the sperm abnormalities test were used to study the reproductive and developmental toxicities of MeHg on male mice .

显性致死实验结果表明各剂量组的受孕率、死胎和吸收胎数经统计学处理与阴性对照组无差异。

The results of dominant lethal test showed no statistical difference in the number of living , dead and resorbed fetuses between the exposed and the negative control groups .