|Dataset||MPO Gene-Phenotype Associations|
|Category||disease or phenotype associations|
|Description||absence of the extraembryonic tissue membrane, formed from the visceral endoderm and the extraembryonic mesoderm, which is located ventral to the embryonic disc and is connected to the presumptive midgut of the embryo (Mammalian Phenotype Ontology, MP_0011206)|
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3 gene mutations causing the absent visceral yolk sac phenotype in transgenic mice from the MPO Gene-Phenotype Associations dataset.