(F) Representative immunofluorescence chromosome spreads showing reloading of exogenous eCENP-CmRFP-DHFR in the presence (control) and in the absence (sample) of endogenous CENP-A and CENP-C. Cells were arrested with Colcemid for 3 h prior to spread. Cells with centromeric CENP-C are marked with a red dashed contour line while a yellow contour line marks cell without centromeric CENP-C. Chromosomes in inset are highlighted using a white dashed line. (G) Quantification of relative number of cells with eCENP-CmRFP-DHFR in the indicated conditions. Each dot represents one independent experiment with at least 30 cells per condition. 