behavior/neurological
• no response to a clickbox
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craniofacial
• a small number of homozygous mice display cranial protrusions; this is observed in roughly half of homozygous embryos at E17.5
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hearing/vestibular/ear
• fusion of the sensory hair cells of the cochlea
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• no response to 90dB SPL acoustic brain response (ABR) stimulus
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nervous system
• fusion of the sensory hair cells of the cochlea
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• degeneration of the spiral ganglion neurons
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skeleton
• a small number of homozygous mice display cranial protrusions; this is observed in roughly half of homozygous embryos at E17.5
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