Table 1

Frequency of the different genotypes in day-3.5 preimplantation embryos of +/− × +/− matings

Developmental stageNo. of embryos (% of total) with genotype
Total+/++/−−/−No result
Blastocyst30  (60%)15  (88%)13  (72%)2  (20%)0
Morula5  (10%)1  (6%)2  (11%)2  (20%)0
Degenerate morula8  (16%)1  (6%)3  (17%)3  (30%)1
≤16 cells7  (14%)003  (30%)4
Total501718105