Q: Erythropoiesis involves the differentiation of a nucleated progenitor cell into a non-nucleated erythrocyte. Prior to the loss of its nucleus, the progenitor cell has a high concentration of ribosomes. This is most likely due to which of the following?
A		production of nucleus-degrading proteases and nucleases
B		production of hemoglobin
C		maintenance of the enlarged nucleus
D		secretion of paracrine differentiation proteins

Eukaryotic Cells | Circulatory System |