What bone marrow cells can differentiate into all of the blood cells?
a. Burst-forming unit–erythroid (BFU-E)
b. Colony-forming unit–granulocyte-monocyte (CFU-GM)
c. Colony-forming unit–granulocyte, erythrocyte, monocyte, and megakaryocyte (CFU-GEMM)
d. Hematopoietic stem cells (HSCs)
ANS: D
The stem cell from which all blood cells are derived is the HSC. The other stem cells mentioned are all committed to one or more blood cell lineage: BFU-E to erythroid; CFU-GM to granulocytes and monocytes; and CFU-GEMM to granulocytes, erythroid, monocytes, and megakaryocytes (from which platelets are derived).
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