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Bisphenol A (BPA) is a synthetic monomer widely used to polymerize polycarbonate plastics and resins. It is shown in vitro to interfere with microtubules, producing aberations in mitotic and meiotic spindles. An increase of meiotic abnormalities in untreated female mice from an experimental colony was temporally correlated with the accidental release of BPA from polycarbonate cages and bottles damaged by inadvertent treatment with harsh alkaline detergents [P.A. Hunt, K.E. Koehler, M. Susiarjo, C.A. Hodges, A. Ilagan, R.C. Voigt, S. Thomas, B.F. Thomas, T.J. Hassold, Bisphenol A exposure causes meiotic aneuploidy in the female mouse, Curr. Biol. 13 (2003) 546–553]. In the present study, potential aneugenic effects of BPA on mouse male and female germ cells and bone marrow cells have been evaluated after acute, sub-chronic or chronic in vivo exposure. Female mice were orally treated with a single BPA …