mortality/aging
• some mice die by E3.5
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• mice tend to be completely resorbed at E7.5
• no mice are recovered at E8.5
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embryo
• in E2.5 embryos
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• in culture, morula staged embryos cease growing and die unlike wild-type embryos
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• small at E3.5
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• small at E3.5
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• small at E3.5
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cellular
• in E2.5 embryos
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• in cultured E2.5 embryos
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