mortality/aging
• some mutants fail to thrive and die by two weeks of age
• survivors reach normal size and weight as adults
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growth/size/body
• mutants are smaller than normal siblings at birth
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integument
• hair on cheeks,nose and genital regions is shorter and thinner than normal
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• hair on cheeks,nose and genital regions is shorter and thinner than normal
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• a juvenile hair coat fails to grow
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sparse hair
(
J:15384
)
• adult hair is sparse
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ruffled hair
(
J:15384
)
• the sparse adult hair is is thin and curly
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• not found on adults
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• not found on adults
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• differentiates mutant mice from normal siblings at 2-3 days after birth
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scaly skin
(
J:15384
)
• by 6 days of age, the skin has a layer of cornified cells which falls off by 12 days of age
|