skeleton
• mice lack the first pair of ribs
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• mice exhibit an anterior transformation with vertebra C6 through T3 exhibiting the characteristics of C5 through T2
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hematopoietic system
• cultured bone marrow cells form more erythroid colonies consisting of erythroid burst-forming unites (BFU-E) and erythroid colony forming units (CFU-E) than wild-type bone marrow cells
• however, differentiation of other lineages is normal
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• fetal liver cells generate more erythroid burst-forming units than cells from wild-type mice
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immune system
N |
• mice exhibit normal immune function
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