Term: | neural rod nucleus |
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Note: | This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name. |
Name: | neural rod |
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Synonyms: | presumptive central nervous system |
Definition: | An intermediate stage in the development of the central nervous system present during the segmentation period; the neural rod is roughly cylindrical in shape, forms from the neural keel, and is not yet hollowed out into the neural tube. |
Ontology: | Anatomy Ontology [ZFA:0000133] |
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 |