What is the life of red blood cells in human body ?

7 days 90 days 120 days 150 days

120 days

The correct answer is Option (3) – 120 days After differentiating from erythroblasts in the bone marrow, human red blood cells (RBC) are discharged into the blood and remain in circulation for about 120 days. RBC typically survive in a nonrandom fashion in humans and certain other mammals.