mortality/aging
• all homozygotes die in utero prior to E16.5; however, viable embryos are still detected at E14.5
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growth/size/body
• smaller size in a dead embryo at E16.5
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• homozygotes display growth retardation at E14.5
• lack of proper organ development in a dead embryo at E16.5
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limbs/digits/tail
• homozygotes display delayed limb development at E13.5
• lack of proper limbs in a dead embryo at E16.5
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cardiovascular system
• lack of proper blood vessels in a dead embryo at E16.5
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