Table 2

Dual colour FISH analysis of chromosome 21 in spare IVF embryos for preliminary work

Probes testedUniformly normalDiploid mosaicAneuploid mosaicChaotic
Chr 21 YACS8200
Chr 21 cosmids5111
Total 18 (100%)13 (72%)3 (17%)1 (5.5%)1 (5.5%)