however , the frequency of sister chromatid exchanges ( sce ) , a newly developed sensitive parameter for the detection of recombinational exchanges linked with dna repair , was not significantly increased ( mean 5.3 +/- 1.0 sce/cell ) in comparison to the referents ( mean 4.4 +/- 0.6 sce/cell ) .
C0037211
sce
C0007634
cell