mortality/aging
• homozygous embryos are detected at the morula stage (E2.5) but absent at the blastocyst stage
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embryo
• 4 of 4 arrested morula show markers for apoptosis
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• cultured embryos collected at E2.5 fail to progress past the morula stage
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• arrest at the morula stage
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cellular
• results from embryos and MEFS suggest that mRNA translation and rRNA synthesis are impaired
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• 4 of 4 arrested morula show markers for apoptosis
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