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. 2007 Jul;8(7):515–521. doi: 10.1631/jzus.2007.B0515

Fig. 1.

Fig. 1

Fig. 1

Fig. 1

Fig. 1

Results of FISH analysis of biopsied blastomeres from preimplantation embryos using chromosome 21 (orange, white arrow) and chromosome 13 (green, pink arrow) probes. Case 1: (a) trisomy 21 (three orange signals), (b) monosomy 21 (one orange signal); Case 2: (c) normal for chromosome 21 (two orange signals), (d) trisomy 21 (three orange signals). All of the blastomeres are normal for chromosome 13 (two green signals)