| Name: | blastoderm |
|---|---|
| Synonyms: | |
| Definition: | Embryonic structure that is composed of the cellular part of the embryo, excluding the yolk cell, derived from the blastodisc by early morphogenesis; refers particularly to the time when the cell array is sheet-like, between 30%-epiboly and the end of gastrulation. |
| Ontology: | Anatomy Ontology [ZFA:0001176] |
| Name: | cleavage furrow |
|---|---|
| Synonyms: | |
| Definition: | The cleavage furrow is a plasma membrane invagination at the cell division site. The cleavage furrow begins as a shallow groove and eventually deepens to divide the cytoplasm. |
| Ontology: | GO: Cellular Component [GO:0032154] QuickGO AmiGO |
| Name: | absent |
|---|---|
| Synonyms: | absence, absent from organism |
| Definition: | A quality denoting the lack of an entity. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000462] |