Phenotypes of Fgf8 conditional mutants
| Gestational age . | Type A Aplastic OE (% of total embryos) . | Type B Hypoplastic OE (% of total embryos) . | Total embryos examined . |
|---|---|---|---|
| E10.5 | 0 (0%) | 7 (100%) | 7 |
| E11.5 | 2 (40%) | 3 (60%) | 5 |
| E12.5 | 2 (29%) | 5 (71%) | 7 |
| E14.5 | 3 (37%) | 5 (63%) | 8 |
| E17.5 | 3 (75%) | 1 (25%) | 4 |
| Gestational age . | Type A Aplastic OE (% of total embryos) . | Type B Hypoplastic OE (% of total embryos) . | Total embryos examined . |
|---|---|---|---|
| E10.5 | 0 (0%) | 7 (100%) | 7 |
| E11.5 | 2 (40%) | 3 (60%) | 5 |
| E12.5 | 2 (29%) | 5 (71%) | 7 |
| E14.5 | 3 (37%) | 5 (63%) | 8 |
| E17.5 | 3 (75%) | 1 (25%) | 4 |
Each embryo was cryosectioned (20 μm) throughout the entire frontonasal region and sections stained with Hematoxylin-eosin. Criteria for categorization of mutants is discussed in the text.