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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 immune system development
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Accession:MP:0020981 term browser browse the term
Definition:any anomaly in the process whose specific outcome is the progression of an organismal system whose objective is to provide calibrated responses by an organism to a potential internal or invasive threat, over time, from its formation to the mature structure

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  mammalian phenotype 0
    immune system phenotype 0
      abnormal immune system morphology 0
        abnormal immune system development 0
          abnormal leukopoiesis + 0
          abnormal lymph organ development + 0
          abnormal spleen development + 0
          abnormal thymus development + 0
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