Question

Erythropoiesis in adults starts in

• A. Kidney
• B. Red bone marrow
• C. Liver
• D. Spleen

Answer 1

The correct option is B

Red bone marrow

Erythropoiesis

Erythrocytes are red coloured enucleated cells present in the blood. The process of formation of erythrocytes is termed as erythropoiesis. Erythrocytes are formed from haematopoietic stem cells present in red bone marrow. These cells differentiate to form red blood cells or erythrocytes.

Hence, the site for erythropoiesis is red bone marrow.

Final answer

$\left(B\right)$ Red bone marrow