| Name: | blastomere |
|---|---|
| Synonyms: | blastomeres |
| Definition: | Cell that arises during cleavage and is partially cleaved, and located at the blastodisc margin prior to collectively forming the yolk syncytial layer (YSL) in the midblastula. |
| Ontology: | Anatomy Ontology [ZFA:0000093] |
| Name: | metaphase chromosome alignment |
|---|---|
| Synonyms: | chromosome congression |
| Definition: | A chromosome localization process whereby chromosomes are positioned in a specific order and orientation at the metaphase plate (spindle equator), during chromosome segregation. This alignment ensures that each daughter cell will receive the correct number of chromosomes during cell division. |
| Ontology: | GO: Biological Process [GO:0051310] QuickGO AmiGO |