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EMs of immunostained Saos whole-mount CSKs. (B) An enlarged area of A. The arrowheads point to the two centrioles. The large gold beads (15 nm) show the distribution of Cdc2 and the small beads (5-nm gold beads) the pericentrin antigen. [(A) bar = 500 nm, (B) bar = 100 nm.]
