<prompt> The ratio of fat cells and blood cells in bone marrow is-1:041:021:012:01  <response>: Fat to Cell ratio - in bone marrow should be 1:1 so 12 hemopoietic cells and 12 are fat cells myeloid: erythroid ratio -in bone marrow -should be 3:1 -an increased ratio is found in infections, chronic myelogenous leukemia, or erythroid hypoplasia. 