Which of the following statements best captures an aspect of the process of hematopoiesis?
A)
Colony-stimulating factors (CSFs) produce cytokines that activate progenitor cells.
B)
Progenitor cells differentiate into precursor cells.
C)
Various subtypes of pluripotent stem cells eventually differentiate into the cellular components of blood.
D)
Self-replicating precursor cells differentiate into specific CSFs.
Ans:
B
Feedback:
During hematopoiesis, progenitor cells differentiate into precursor cells, which in turn differentiate into the cellular components of blood. Cytokine stimulation precedes and regulates the process, and there are no different subtypes of pluripotent stem cells. Precursor cells are not self-replicating.
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