[Quantitative evaluation of the effectiveness of the formation of sister chromatid exchanges and chromosome aberrations as affected by chemical mutagens].

Dose curves of five chemicals were studied to compare the efficiency of SCE and chromosomal aberration induction by different chemical mutagens. SCEs were found to increase linearly with the dose, whereas chromosomal aberrations--nonlinearly. Using regression coefficients obtained from the dose curves it was found that the efficiency of the studied chemical mutagens in induction of SCEs is 100-300 times as high as that in the induction of chromosomal aberrations.