Red blood cells lose their nucleus at maturity. It is kicked out, lost or nuked (depending how you want to call it) to make more room for hemoglobin. The nucleus makes as much as possible, packs it in tight and then is lost. Because the nucleus is gone, the cell can not repair itself and will get tattered and rather worn out in about 120 days. It will be recycled.
Red blood cells lose their nucleus during their development in the bone marrow. Once mature, they are released into the bloodstream without a nucleus.
Mammals do not have red blood cells that lack a nucleus. All mammalian red blood cells, or erythrocytes, start out in the bone marrow with a nucleus, but lose it as they mature.
No, not all mammals have red blood cells without a nucleus. In most mammals, including humans, red blood cells lose their nucleus as they mature, but there are exceptions, such as camelids like llamas and alpacas, where mature red blood cells retain their nucleus.
Red blood cells (erythrocytes) do not have a nucleus. They lose their nucleus as they mature in order to make space for hemoglobin, the molecule responsible for carrying oxygen in the blood.
Plant cells that are transitioning from parenchyma to collenchyma. The transition process sheds the nucleus as the cell walls become thickened and the cell beings to die. This is the process that is responsible for tree bark.
red blood cells
RBCs (Red Blood Cells) don't have a nucleus. They initially have a nucleus to start with but lose it during maturation. All cells require a nucleus to be formed.
Red blood cells, also known as erythrocytes, do not have a nucleus. They lose their nucleus during development in order to maximize their capacity to carry oxygen.
White blood cells, also known as leukocytes, have a nucleus. Red blood cells, or erythrocytes, lose their nucleus during maturation in order to maximize their capacity for oxygen transport.
Red blood cells lose their nucleus during their development in the bone marrow. Once mature, they are released into the bloodstream without a nucleus.
Prokaryotic cells do not have a membrane bound nucleus. They do have a nuclear area. Additionally, the mature human red blood cell lacks a nucleus. It excruded it's cell upon maturity. This allows it to carry more hemoglobin.
Then, congratulations, you're living in the real world, where human red blood cells do not, in fact, have nuclei (the red blood cells of some species do have nuclei, but those of humans do not). You've essentially asked "What if the sky were blue?"
Mammals do not have red blood cells that lack a nucleus. All mammalian red blood cells, or erythrocytes, start out in the bone marrow with a nucleus, but lose it as they mature.
No, not all mammals have red blood cells without a nucleus. In most mammals, including humans, red blood cells lose their nucleus as they mature, but there are exceptions, such as camelids like llamas and alpacas, where mature red blood cells retain their nucleus.
Red blood cells (RBCs) do not contain a nucleus. They lose their nucleus during development to make room for more hemoglobin, which is necessary for oxygen transport in the blood.
Red blood cells (erythrocytes) do not have a nucleus. They lose their nucleus as they mature in order to make space for hemoglobin, the molecule responsible for carrying oxygen in the blood.
Plant cells that are transitioning from parenchyma to collenchyma. The transition process sheds the nucleus as the cell walls become thickened and the cell beings to die. This is the process that is responsible for tree bark.