reproductive system
N |
• no defects in oogenesis, ovulation or fertilization are detected and the subcortical maternal complex persists
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• during a 6 month span females produced from 0 to 5 litters and the time from mating to delivery was increased to about 30 days (range 20 - 120 days) cmpared to about 20 days in controls
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• litter size is reduced when females are crossed to homozygous, heterozygous, or wild-type males
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cellular
• significantly fewer embryos reach the morula or blastocyst stage when the mother is homozygous null
• when the mother is homozygous null, embryonic development is delayed in some embryos as a result of a prolongation of the G2 phase of cell division and many of these delayed embryos display aneuploidy
• delayed embryos display spindle abnormalities and defects in spindle assembly checkpoint function
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