integument
• unlike in HrHr homozygotes, 20 week old mice exhibit light brown, freckle-like spots or macules with a striated appearance due to a heavier concentration of melanin at the dermis and epidermis junction
• at 10 months, mice exhibit un-striated macules in the tail, ear and feet that does not change skin color unlike in HrHr homozygotes
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pigmentation
• unlike in HrHr homozygotes, 20 week old mice exhibit light brown, freckle-like spots or macules with a striated appearance due to a heavier concentration of melanin at the dermis and epidermis junction
• at 10 months, mice exhibit un-striated macules in the tail, ear and feet that does not change skin color unlike in HrHr homozygotes
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