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The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories ( For more information about these ontologies, see the MGI Publications Page at

Term:abnormal primitive streak morphology
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Accession:MP:0002231 term browser browse the term
Definition:anomaly in the midline ridge of the embryonic epiblast that later develops into mesoderm and endoderm
Synonyms:exact_synonym: defective primitive streak;   primitive streak dysplasia

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  mammalian phenotype 5373
    embryo phenotype 6
      abnormal embryo morphology 2
        abnormal embryonic tissue morphology 1
          abnormal primitive streak morphology 0
            abnormal anterior primitive streak morphology + 0
            abnormal posterior primitive streak morphology + 0
            abnormal primitive groove morphology 0
            abnormal primitive node morphology + 0
            abnormal primitive pit morphology 0
            abnormal primitive streak formation + 0
            abnormal primitive streak regression 0
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