Mitosis is the process by which a eukaryotic cell separates the chromosomes in its cell nucleus into two identical sets, in two separate nuclei. It is generally followed immediately by cytokinesis, which divides the nuclei, cytoplasm, organelles and cell membrane into two cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of the cell cycle-the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell. This accounts for approximately 10% of the cell cycle.
Mitosis occurs only in eukaryotic cells and the process varies in different species. For example, animals undergo an "open" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi such as Aspergillus nidulans and Saccharomyces cerevisiae (yeast) undergo a "closed" mitosis, where chromosomes divide within an intact cell nucleus. Prokaryotic cells, which lack a nucleus, divide by a process called binary fission.
The process of mitosis is fast and highly complex. The sequence of events is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are prophase, prometaphase, metaphase, anaphase and telophase. During mitosis the pairs of chromatids condense and attach to fibers that pull the sister chromatids to opposite sides of the cell. The cell then divides in cytokinesis, to produce two identical daughter cells which are still diploid cells.
Because cytokinesis usually occurs in conjunction with mitosis, "mitosis" is often used interchangeably with "mitotic phase". However, there are many cells where mitosis and cytokinesis occur separately, forming single cells with multiple nuclei. This occurs most notably among the fungi and slime molds, but is found in various groups. Even in animals, cytokinesis and mitosis may occur independently, for instance during certain stages of fruit fly embryonic development. Errors in mitosis can either kill a cell through apoptosis or cause mutations that may lead to certain types of cancer.
The number of chromosomes that each daughter cell has after mitosis is equal to the number of chromosomes in the original (parent) cell.
After mitosis each daughter cell contains 46 chromosomes as the DNA replicates itself before the cell divides
It depends on how many chromosomes you have before the cell goes through mitosis. For example if you have 12 chromosomes after the cell goes through mitosis and breaks into two cells you will end up with 12 chromosomes in each cell and it will continue the same way on and on.
Mitosis, of course.
Mitosis always yields the same number of chromosomes as the parent cell. In humans, 23.
In the beginning of mitosis the number of chromosomes double. But since during mitosis the chromosomes are divided between the two daughter cells the number of chromosomes at the end is the same number as the beginning before doubling.
The number of chromosomes that each daughter cell has after mitosis is equal to the number of chromosomes in the original (parent) cell.
It depends on the species--humans, for example, will have 46 chromosomes in each daughter cell after mitosis, while a dog will have 78. In mitosis, the number of chromosomes in each daughter cell is equal to the number of chromosomes in the interphase parent cell.
After mitosis each daughter cell contains 46 chromosomes as the DNA replicates itself before the cell divides
It depends on how many chromosomes you have before the cell goes through mitosis. For example if you have 12 chromosomes after the cell goes through mitosis and breaks into two cells you will end up with 12 chromosomes in each cell and it will continue the same way on and on.
The daughter cell will have five (5). The parent cell replicates its DNA in a stage of mitosis called Interphase before it splits, into two new daughter cells with the same number of chromosomes.
46
two or four it all depends on sister and daughter chromosomes during the mitosis procedure about half the amount
No, it will have the same number of chromossomes. Mitosis is when cells clone themselves.
Mitosis, of course.
Each daughter cell will have 52 chromosomes. This is because mitosis produces daughter cells which are genetically identical to the parent cell. Therefore they will have the same number of chromosomes.
Mitosis always yields the same number of chromosomes as the parent cell. In humans, 23.