Table 2.
Phenotypes of day 3.5 preimplantation embryos
| Developmental stage | +/− × +/−
|
+/+ × +/+ or +/− × +/+
|
||
|---|---|---|---|---|
| No. of embryos (% of total) | No. of embryos with micronuclei (% of total) | No. of embryos (% of total) | No. of embryos with micronuclei | |
| Blastocyst | 88 (56.8%) | 4 (10.3%) | 48 (75%) | 0 |
| Morula | 38 (24.5%) | 13 (33.3%) | 8 (12.5%) | 0 |
| Degenerate morula | 26 (16.8%) | 22 (56.4%) | 0 | 0 |
| ≤16 cells | 2 (1.3%) | 0 | 3 (4.5%) | 0 |
| Dead | 1 (0.6%) | 0 | 5 (8%) | 0 |
| Total no. of embryos | 155 | 39 | 64 | |
| No. of litters | 19 | 8 | ||
| Avg. no. of embryos/litter | 8.2 | 8.0 | ||