mortality/aging
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• male mutants are present at Mendelian ratios at E7.5 and 10.5, but no viable embryos are recovered after E12.5
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embryo
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• embryos between E7.5 and 10.5 exhibit severe growth retardation
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growth/size/body
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• embryos between E7.5 and 10.5 exhibit severe growth retardation
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