Question

what is a reticulocyte?
a a type of white blood cell
b an immature red blood cell
c a hormone that stimulates the production of blood cells
d a formed element that functions in blood clotting

Explanation:

Reticulocytes are immature red blood cells. They are produced in the bone marrow and released into the bloodstream. As they mature, they lose their ribosomal RNA and become fully functional red blood cells. Option A is incorrect as reticulocytes are not white blood cells. Option C is incorrect as erythropoietin is the hormone that stimulates blood cell production. Option D is incorrect as platelets are the formed elements involved in blood clotting.

Answer:

B. An immature red blood cell