Ratio of fat cells and RBC in bone marrow ?

Ans. is 'a' i.e., 4 : 1o Dont get confuse with previous explanation. This question is tricky one.o Here the examinar is asking about the ratio of fat cells to RBC (not fat cells to all blood cells). o Normal ratio of fat cells to hematopoietic cells (all blood cells) is 1 : 1.o Ratio of myeloid to erythroid cells is 3 : 1.o Thus, ratio of fat cells to erythroid cell is 4:1. Following example will help you to understand this:- o Assume there are 100 fat cells and 100 hematopoietic cells in bone marrow (ratio is 1:1). Out of these 100 hematopoietic cells, 75 are myeloid cells and 25 erythroid cells (ratio 3:1).Thus, 100 fat cells are there for 25 erythroid cells (ratio 4:1).