Abstract
The effectiveness of several copper coordination complexes in the induction of sister-chromatid exchanges (SCE) in meristematic cells of Allium cepa roots was studied. A significant increase in the frequencies of SCE was observed when cells were exposed to different concentrations of copper complexes for 3 h. This effect, which is concentration dependent, seems to be related to the possibility of intercalative binding modes between the planar copper complexes and DNA.
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