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. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: DNA Repair (Amst). 2010 Jul 1;9(7):737–744. doi: 10.1016/j.dnarep.2010.03.009

Fig. 3.

Fig. 3

Examples of IR-induced CAs in S-phase 51D1 cells. (A) 150 cGy, elutriation fraction 13 (~75% S); metaphase with chromatid breaks (CB) and inter- and intra-chromosomal chromatid-type exchanges, including a quadriradial (QR) and sister union (SU), marked by smaller arrows. (B) 300 cGy, elutriation fraction 7 (~60% S); metaphase with an inter-chromosomal chromatid-type exchange [triradial (TR), marked by smaller arrow] and complex exchange involving seven chromosomes (marked by larger arrow). (C) 300 cGy, elutriation fraction 10 (~75% S); metaphase with two complex exchanges involving four and five chromosomes (marked by larger arrows).