They did have a nucleus . When they are formed in the bone-marrow, they contain a nucleus, but when the become mature it is replaced by haemoglobin in order to carry more oxygen.
By- Pranjal Prasoon
Red blood cells (erythrocytes) do not have nuclei.
erythrocytes
Thenoticeabledifference is that bird erythrocytes have organelles and a nuclei, which most mammals erythrocytes don't have.
Virtually all eukaryotic (meaning all plants, animals, funghi, etc) cells have nuclei. The only exception of which I can think are erythrocytes (red blood cells) which lose their nuclei as they mature in mammals.
Yes, mature erythrocytes are still cells and are still living. In most mammals the circulating red blood cells do not have nuclei, so they are unable to repair themselves when damaged and eventually die due to the accumulated damage.
Erythrocytes, or red blood cells, are actually biconcave disc-shaped cells that lack nuclei in their mature form, allowing for maximum surface area to facilitate gas exchange. They are rich in hemoglobin, which is responsible for oxygen transport, rather than ATP. While erythrocytes do produce some ATP through anaerobic metabolism, their primary function is not ATP production but rather the transport of oxygen and carbon dioxide in the bloodstream.
erythrocytes Erythrocytes
Red blood cells without nuclei are called mature erythrocytes. They lack the ability to divide and reproduce or repair themselves. This makes them dependent on the bone marrow to continuously produce new red blood cells to maintain adequate levels in the bloodstream.
erythrocytes
No. Erythrocytes are produced by bone marrow.
Assuming that the question asked whether or not a red blood cell has a nucleus, the answer is no. Erythrocytes have no nuclei to create more space for the containment of haemoglobin, the red pigment that is responsible for the uptake of oxygen.
red blood cells are also called erythrocytes