Question

Cells which lose their nucleus during differentiation are

• A. Nerve cells.
• B. Muscle cells.
• C. Erythrocytes.
• D. .Leucocytes.

Answer 1

The correct option is C Erythrocytes.

Erythrocytes also called red blood cells are formed in bone marrow from multipotential hemocytoblast and further converted to erythroblast (normoblast). The nucleus and mitochondria of erythroblast disappear and it is converted to mature erythrocyte with haemoglobin. Erythrocytes cannot multiply as they lack nucleus and can survive for 100-120 days. Nerve cells, muscle cells and leucocytes posses their nucleus even after differentiation hence answer C is correct.