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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:absent allantois
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Accession:MP:0003087 term browser browse the term
Definition:missing fetal membrane which contributes to the formation of the umbilical cord and placenta

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  mammalian phenotype 5417
    embryo phenotype 11
      abnormal extraembryonic tissue morphology 9
        abnormal allantois morphology 0
          absent allantois 0
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