Sister chromatids move because kinetochore microtubules attach to them during metaphase and shorten during anaphase. As they shorten, the mirocrotubules pull each sister chromatid toward an opposite pole of the cell, ensuring that only one copy of DNA is present in each daughter cell.Know More
Mitosis begins after interphase ends, and the nuclear material of the cell is replicated. The first phase of mitosis is called prophase, during which the DNA that has been replicated condenses into an X-shaped body. The next phase is called prometaphase; during this stage, the nuclear membrane breaks down into vesicles, which allows microtubules to invade the nuclear space of the cell.
Metaphase follows prometaphase, when the chromosomes begin to align at the equator of the cell and the microtubules from each pole attach to the kinetochores of the chromosomes. Anaphase is the next phase, and it marks the separation of the sister chromatids. It is divided into two parts: anaphase A, during which the kinetochore microtubules shorten and pull the sister chromatids toward each separate pole, and anaphase B, during which astral microtubules separate the poles further apart, separating the sister chromatids even more.
The last two phases are telophase and cytokinesis. In telophase, the mitotic spindle disintegrates after the chromatids arrive at their separate poles. During cytokinesis, the cell splits in half after the creation of a cleavage furrow, which bisects the cell, marking the end of cell division and the creation of two daughter cells.Learn more about Cells
Chromatids separate into two sister chromosomes during the anaphase of cell division. Mitosis is a process of nuclear division in which two daughter cells are created from a parent cell.Full Answer >
During mitosis, new nuclear membranes form around the chromatids that were split during the anaphase stage of the process. The nuclear membrane of the original nucleus dissolves during the earlier prophase stage of the mitosis.Full Answer >
During metaphase, the chromosomes that carry genetic information align in the equator of the cell before they split off into two daughter cells with identical genetic material. Metaphase is the third stage of mitosis, which is a phase of the cell cycle where chromosomes in the nucleus are divided between two cells.Full Answer >
Mitosis and meiosis are biological functions that create cell division and enable reproduction. These two processes are similar in that they produce offspring cells, but differ in the type of cells they produce. While mitosis results in the generation of two identical daughter cells that originate from single parent cells, meiosis involves the fission of two nuclei, which produces four gametes.Full Answer >