Classical marker for hematopoietic stem cells.

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Multiple Choice

Classical marker for hematopoietic stem cells.

CD34 is the classic surface marker for hematopoietic stem cells and their early progenitors, which is why it’s the best answer here. It’s widely used to identify, isolate, and quantify stem cells for transplantation, typically by flow cytometry or cell-sorting techniques. The other markers point to mature or lineage-committed cells: CD3 marks T lymphocytes, CD19 marks B cells, and CD14 marks monocytes/macrophages, not the pluripotent stem cell population.

CD34 is the classic surface marker for hematopoietic stem cells and their early progenitors, which is why it’s the best answer here. It’s widely used to identify, isolate, and quantify stem cells for transplantation, typically by flow cytometry or cell-sorting techniques. The other markers point to mature or lineage-committed cells: CD3 marks T lymphocytes, CD19 marks B cells, and CD14 marks monocytes/macrophages, not the pluripotent stem cell population.

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