Figure 5.—

Statistics of deletion recovery. (A) Deletion recovery frequency depends on the size of the deletion attempted. The percentage of deletion progeny recovered (Y axis) for deletions in a given size range (X axis), the bars represent standard deviations. (B) Absolute deletion recovery is affected by size, but not to a great extent. The frequency of success in generating deletions in the given size range is given, irrespective of the number of progeny that needed to be screened. (C) The extent of somatic mosaicism in heat-shocked flies carrying the RSr chromosomes in trans is a good indicator of successful deletion recovery. The frequency of deletion recovery (y-axis) for each of the indicated deletion size ranges is presented with respect to the subjective scoring of eye color mosaicism. In general parents with little mosaicism are less successful at producing deletion progeny.