Blood cell development begins with which type of cell?

Blood cell development begins with hematopoietic stem cells, which are multipotent stem cells found primarily in the bone marrow. These stem cells have the unique capability to differentiate into all types of blood cells, including red blood cells, white blood cells (such as lymphocytes and granulocytes), and platelets.

Hematopoietic stem cells undergo a series of divisions and differentiations influenced by various growth factors and cytokines. This process leads to the formation of the committed progenitor cells, which then become more specialized as they develop into the various types of mature blood cells.

The other options represent specific types of blood cells that are derived from hematopoietic stem cells, not the origin of blood cell development itself. Red blood cells, granulocytes, and lymphocytes are all end products of the differentiation process that starts with hematopoietic stem cells.