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Centrosomes in endoreplicating cells are duplicated in synchrony with DNA replication. (A) The centrosomes of endoreplicating cells were stained with mouse monoclonal γ-tubulin and rabbit polyclonal NAP1 antibodies. (B) Endoreplicating cells were stained in parallel for centrosomes (γ-tubulin) and for centromeres. (C) A plot of centrosomes versus centromeres of endoreplicating cells. Arrows indicate the expected number of centromeres for the respective ploidy.
