behavior/neurological
• low auditory startle response
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• disoriented
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hearing/vestibular/ear
• hair bundles are disorganized, fragmented, and frequently contain malformed stereocilia in reduced numbers
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• auditory threshold of more than 90 dB, indicating that lines are severely hearing impaired in 3-week-old and 2-month-old animals
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nervous system
• hair bundles are disorganized, fragmented, and frequently contain malformed stereocilia in reduced numbers
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