Paleozoic era
Not all cells have nuclei. All eukaryotic cells have nuclei and all prokaryotic cells do not.
The nuclei of the egg and sperm cells fuse to form the fertilized egg.
all cells have a nuclei
Cells that have nuclei are eukaryotic.
No. Mammalian red blood cells do not have nuclei.
Nuclei can vary in size depending on the type of cell. Generally, the nuclei of cells within the same species are similar in size, but there can be variations between different types of cells. Some cells, like muscle cells and some liver cells, may have multiple nuclei.
In the nuclei of the cells.
cells come from other cells
Pleomorphic nuclei are irregularly shaped nuclei that vary in size and structure within a population of cells. This variation can be seen in cancer cells, where the nuclei may exhibit different shapes and sizes compared to normal cells. Pleomorphic nuclei are considered a feature of malignancy when observed in pathology samples.
cell division
Red blood cells (erythrocytes) do not have nuclei.
Nuclei do not contain cells, cells contain nuclei (normally, one nucleus per cell).