| OBO ID: GO:0090009 |
| Term Name: | primitive streak formation | Search Ontology: | |
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| Definition: | The developmental process pertaining to the initial formation of the primitive streak from unspecified parts. The primitive streak is a ridge of cells running along the midline of the embryo where the mesoderm ingresses. It defines the anterior-posterior axis. | ||
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| Ontology: | GO: Biological Process QuickGO AmiGO |
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PHENOTYPE
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