hearing/vestibular/ear
• by P21, some hair cells in the basal turn of the cochlea exhibit fused stereocilia and membrane ruffling at the apical cell surface unlike in wild-type mice
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• profound by P90
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• by 3 weeks of age
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• auditory threshold of more than 90 dB, indicating that lines are severely hearing impaired in 8- to 12-weeks old animals
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• at 3 weeks of age
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nervous system
• by P21, some hair cells in the basal turn of the cochlea exhibit fused stereocilia and membrane ruffling at the apical cell surface unlike in wild-type mice
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• profound by P90
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• profound by P90
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behavior/neurological
• low auditory startle response
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