Question

Immature RBCs of mammals have _________________.

• A. No nucleus
• B. Single beaded nucleus
• C. Many nuclei
• D. Single nuclei

Answer 1

The correct option is A No nucleus

Reticulocytes are immature red blood cells, typically composing about 1% of the red blood cells in the human body. In the process of erythropoiesis (red blood cell formation), reticulocytes develop and mature in the bone marrow and then circulate for about a day in the blood stream before developing into mature red blood cells. Like mature red blood cells, in mammals, reticulocytes do not have a cell nucleus.

So, the correct answer is 'No nucleus'.