2 Phenotype
| Identifier | Name | Description |
|---|---|---|
| WBPhenotype:0000689 | maternal sterile | Animals produce no or very few embryos as a result of experimental treatment. This is in contrast to sterility due to genetic perturbations (maternal effect sterility). |
| WBPhenotype:0001041 | meiosis defective early emb | Animals exhibit defects in the progression of meiosis which ultimately result in embryonic lethality. |



