one time.
In mitosis the cell divides once. The two cells, in some cases, may then divide again, but mitosis is just one cell dividing into two cells.
Cells divide once in mitosis, resulting in two daughter cells that are genetically identical to the original cell. In meiosis, cells divide twice, resulting in four daughter cells that are genetically diverse due to genetic recombination.
Once, and then the two daughter cells can grow and later divide.
2 twice
Animal zygotes divide to form more cells. The zygote divides itself many times by mitosis until an embryo is formed.
Animal zygotes divide to form more cells. The zygote divides itself many times by mitosis until an embryo is formed.
Meiosis divides twice since it is trying to duplicate the cells to create two new daughter cells for the creation process in species. It is the opposite of mitosis.
During meiosis, cell division is through sexual reproduction. This produces genetically different cells, under two divisions. The chromosome number is reduced by half. During mitosis, asexual reproduction during cell division creates genetically identical cells. The amount of chromosomes remain the same.
The frequency of cell division through mitosis varies depending on the cell type. For example, skin cells and cells lining the intestines divide more frequently than nerve cells or muscle cells. Some cells, like heart muscle cells, may not divide at all after a certain stage of development.
Mitosis involves one cell division and ends up with two daughter cells. Meiosis involves two cell divisions and ends up with four daughter cells.
In both mitosis and meiosis DNA replication only occurs once, during Interphase and Interphase 1, for mitosis and meiosis, respectively.
Mitosis a process more simply explained as regeneration of cells, as it is most significant in that process. The cells of our body replicate (clone themselves) as needed. For instance, if you cut your hand, the skin cells will regenerate in the process of mitosis, and so will all cells, except those of reproductive cells which use meiosis. To answer your question: our skin endures micro damage all the time and as regeneration is performed in mitosis, it also occurs all the time.