Table 1 Dicentric chromosome frequencies with FlipFlop insertions
LocationHours after heat shock (hr)Number of brainsDicentric/acentric karyotypeNormal karyotypeTotal metaphases
2L, 37B4–5567 (46%)80147
2329 (20%)3746
3R, 82E4–57132 (63%)76208
23321 (30%)4970