immune system
• mice show, by tail skin graft rejection, an uncharacteristic response to certain polysaccharide antigens
• mutant mice accept tail skin grafts from normal mice; but normal mice reject tail skin grafts from mutant mice over a 12 week period
• mice still show expected incidence and latent period of the SJL/J Hodgkin's-like lesion
• response to sheep red blood cells is normal
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integument
• hair is noticeably depleted on the tail by 2 weeks of age and also on the feet, genitals, and around nipples
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• observable by 2 weeks of age
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• observable by 2 weeks of age
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