The Effect of High and Low Roentgen Intensity on Dominant Lethals in Drosophila Melanogaster

Abstract
Drosophila males were irradiated with 800-900 r and after 7 days, that is during a period of maximum chromosome damage rate, mated to selected females of high egg-laying capacity. No significant difference in hatchability could be seen when high as compared to low intensity radiation was used, i.e., 50 micro-second exposure versus 15 minute exposure for the same total dose.