Reticulocytes Complete Their Development into ________ in the Circulation

Question

Reticulocytes complete their development into ________ in the circulation.
A) neutrophils
B) megakaryocytes
C) thrombocytes
D) macrophages
E) erythrocytes

Accepted Answer

Reticulocytes are immature red blood cells that still contain remnants of RNA and organelles but lack a nucleus. They circulate in the bloodstream for about 24 hours before completing their development into mature erythrocytes, which lack organelles and a nucleus and are specialized for oxygen transport. Therefore, choice E, erythrocytes, is the best answer.