mortality/aging
• die at about E7.5
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embryo
• extensive apoptosis at E6.5
• markedly increased apoptotic cells in mutant embryos and ectoplacental cones at E7.5
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• the inner cell mass of cultured blastocysts gradually stop growing and die after 6 days in culture
• unable to establish embryonic stem cell clones from blastocysts
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• severely retarded with embryos at E7.5 resembling early stage blastocysts
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• at E6.5
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cellular
• extensive apoptosis at E6.5
• markedly increased apoptotic cells in mutant embryos and ectoplacental cones at E7.5
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• the inner cell mass of cultured blastocysts gradually stop growing and die after 6 days in culture
• unable to establish embryonic stem cell clones from blastocysts
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growth/size/body
• severely retarded with embryos at E7.5 resembling early stage blastocysts
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