Table 1.

Spontaneous chromosomal aberrations per 100 cellsa

Cell cloneChromatidChromosomeExchangeTotal ± SE
BreaksGapsBreaksGaps
Wild type01.30001.3 ± 0.9
RAD54 −/− 01.301.30.673.3 ± 1.5
RAD51B −/− 1.36.706.7015 ± 3.1
RAD51B−/−+ hRad51 01.30001.3 ± 0.9
  • a One hundred fifty mitotic cells were analyzed for each genotype. The total number of aberrations per cell ± the standard error was calculated as x/N ± √x/N as previously described (58).