mortality/aging
• embryos appear normal up to day 3.5 pc but accumulate mitotic errors from days 4.5-6.5 and die before day 8.5
• embryos are viable at day 3.5 in utero and persist in culture through day 3.5-7.5
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embryo
• smaller in size and degenerating by E6.5
• the trophectoderm appears normal
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cellular
• by E4.5, an increased number of micronuclei are observed
• by E6.5, nuclear morphology is grossly abnormal
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• at E6.5, lagging chromosomes and chromatin bridging are observed
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