mortality/aging
• 50% of mice survive into adulthood
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• 50% of embryos die by this stage with the remaining 50% surviving into adulthood
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embryo
• 31% of E6.5 embryos develop AVE distally but the tissue fails to migrate to the anterior side of the pregastrulation embryo
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• affected embryos display anterior truncations or more severe body plan defects at E8.5
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• 4% of E7.5 embryos lack a mesoderm as determined by an absence of FoxA2 staining
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• 26% of E7.5 embryos display defects in primitive streak elongation with some embryos displaying two primitive streaks
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• 26% of E7.5 embryos display defects in primitive streak elongation
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• 15% of E6.5 embryos fail to develop the anterior visceral endoderm (AVE)
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cellular
• 31% of E6.5 embryos develop AVE distally but the tissue fails to migrate to the anterior side of the pregastrulation embryo
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