Flow cytometric analysis of lymphocyte populations in Apc^Min/+ mice that received wt BM. Analysis of animals that received BM from 49-day-old male donors at 142 days after transplantation. Cells from thymi and spleen were stained with anti-CD4 and anti-CD8 antibodies (top) and from spleen and thymus with anti-B220 and anti-IgM antibodies. Only cells in the lymphocyte gate were analyzed. The percentages of cells in each gate are shown in each panel. Results are representative of 3 different animals per group.