Name: | blastomere |
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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: | nucleus |
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Synonyms: | cell nucleus, horsetail nucleus |
Definition: | A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent. |
Ontology: | GO: Cellular Component [GO:0005634] QuickGO AmiGO |
Name: | broken |
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Synonyms: | burst, cracked, fractured, fragmented, hemorrhaged, split, torn |
Definition: | A structural quality inhering in a bearer by virtue of the bearer's components no longer being in a single contiguous unit. |
Ontology: | Phenotypic Quality Ontology [PATO:0001444] |