these differences include : cell cycle activity as measured by in vitro incubation with cytosine arabinoside , residual concentration in the bone marrow after in vivo treatment of donor mice with cytosine arabinoside or methotrexate , resistance to osmotic lysis , size as determined by velocity sedimentation , and the morphology of the granulocyte colonies to which these cells give rise .
C0005953
bone marrow
C0018183
morphology