Question

The formation of erythrocytes in foetus takes place in

• A. Red bone marrow
• B. Liver and spleen
• C. Sarcoplasm
• D. Blood plasma

Answer 1

The correct option is B Liver and spleen

Erythropoiesis is the process of formation of erythrocytes. It occurs within the red bone marrow. In the early fetus, erythropoiesis takes place in the mesodermal cells of the yolk sac. By the third or fourth month, erythropoiesis moves to the liver. After seven months, erythropoiesis occurs in the bone marrow.

So, the correct answer is option B.