Do all mammals red blood cells have no nucleus?


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2011-02-28 19:17:03
2011-02-28 19:17:03

Yeah, I don't understand how you could of got the idea blood cells have a nucleus. Jeez


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Yes, it does have a nucleus. There are different types of white blood cells, but they all do have nucleus'.

all cells have a nucleus (e.g egg cells, white blood cells...)

all of your blood cells have a nucleus

No, when red blood cells are mature, they do not have a nucleus.

ALL types of cells contain nucleus EXCEPT for the red blood cells.

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).

All living eukaryotic cells including plant,animal,fungi,protist cells have a nucleus.But seive tube cells of phloem and red blood cells of mammals lack a nucleus.

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.

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.

No, Only eukaryotic cells have a nucleus. Prokariotes (i.e. bacteria) have no nucleus. The red blood cells of vertebrates also lake a nucleus.

all prokaryotic cells and some eukaryotic like human blood cells lack nucleus

A nucleus can be found in all vertebrate cells, withe the exception of the red blood cells of humans and Batrachosepssalamanders.

This theory is false. Red blood cells do not contain a nucleus.

All mature red blood cells are anucleate. Immature red blood cells have a nucleus but eject them later in their development.

No. Red blood cells (RBC) for example, do not contain a nucleus. Also, prokaryotes do not.

Yes. All types cells in your body have got nucleus. There is only one exception. That is red blood cells. They do not have nucleus. But there are about hundred trillion cells in your body. Number of red blood cells is about the quarter of the total number of cells.

Not all cells have nuclei. Red blood cells are denucleated. Some bacterial cells lack a nucleus from the get go.

Human blood cells, like all human cells, are eukaryotic. However, red blood cells lose their nucleus upon maturity.

All cells age. Red blood cells are particularly prone to aging because they have no nucleus when mature.

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 is no.

I think all animals have at least some cells with nuclei. But for sure, red blood cells do not have a nucleus. That's why when people test for DNA from blood they have isolate the red and white blood cells.

Yes but there is one exception - red blood cells.

Erythrocytes - or known as Red Blood Cells.

Technically you could say nucleus but red blood cells don't have them.

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