Flow cytometric comparison of lineage expression by Ly-5.2 and Ly-5.1 cells of a representative Fli-1^+/- chimeric mouse. Analyses of PB (panel A) and BM (panel B) nucleated cells are shown. The results are representative of 7 mice. Gr-1brightMac-1⁺ cells are neutrophilic granulocytes, and Gr-1dim/-Mac-1⁺ cells are monocytes.