CONTINUOUS VERSUS INTERRUPTED IRRADIATION AND THE RATE OF MUTATION IN DROSOPHILA

Abstract

Various experiments were carried out with the view of determining what the effect on the mutation rate in Drosophila would be if the x-ray dosage were given in fractions at regularly spaced intervals, instead of continuously as a single dose. The C1B method of testing was used. From the results obtained, it is concluded that the rate of mutation, as measured by the number of sex-linked lethals produced, is the same whether the treatment is given in one dose or in several fractional doses.