Do all mammals red blood cells have no nucleus?
Yeah, I don't understand how you could of got the idea blood cells have a nucleus. Jeez
All mammalian cells ... in fact, all ANIMAL cells ... have a nucleus, with a very few exceptions. The exceptions are things like red blood cells, which don't reproduce (they're instead produced from another kind of cell, which DOES have a nucleus) and which don't have a nucleus in adult mammals (they do in most other vertebrates and in mammal fetuses).
No, not all cells have a nucleus. An example of a cell without a nucleus is a red blood cell, the numbers of these are controlled by the bone marrow and the spleen. However you forget that we can also have prokaryote cells (bacteria), and they have circular DNA but do not have a nucleus. I think your question was supposed to be "Do all eukaryotic cells have a nucleus", in which case the answer…
Almost all eukaryotic cells contain a nucleus, which contains their DNA, or genetic make up. Mammalian red blood cells do not contain a nucleus, which means they cannot replicate. However, frog red blood cells usually stay in circulation longer than mammalian red blood cells because the presence of a nucleus allows for more repair.
All cells have many things in common: the cell membrane and organelles. Most cells have an organelle called the nucleus. The only cell, when mature, has no nucleus is a red blood cell. It would be best to say that all cells have this except what. Because the red blood cell has no nucleus it cannot remain alive and repair itself and lasts around 120 days.
The term "lymphocyte" refers to white blood cells. Unlike red blood cells, which stay in what we term the "blood", lymphocytes can move between the blood system and the areas called the "lymphatic system." Here, the fluid is mostly like the serum in the Blood supply. White blood cells originate, mostly, in the bone marrow. They are mostly created with a single nucleus, although some are created without a nucleus at all. As white blood…
The biggest difference is that a red blood cell has no nucleus where as a white blood cell does. A red blood cell has no nucleus because it needs all the space inside the cell for the haemoglobin which is stored inside it and is the oxygen attrcting chemical. White blood cells can have either a bean shaped nucleus which would make it a lymphocyte or a double lobed nucleus which would make it a…
Which describes the characteristics of red blood cells the agents of inflammation or there covex disks with a large nucleus or they transport oxygen to all cells of the body or they lack hemoglobin?
I don't quite remember all the details, but a bone cell will usually actually have 2 nuclei. The marrow in the bone will produce red blood cells complete with a nucleus, and the red blood cells' nuclei are transferred to the skeletal tissue cells which are also formed with nucleus. I don't remember why though.