Cell Cycles: Interphase, Mitosis, Cytokinesis - SchoolWorkHelper
Understand the relationship of of sister chromatids to chromosomes the activities that occur in the cell during interphase, mitosis the, and cytokinesis. Flags of the World · Statistics · International Relations · Travel · Religion Cell Theory, Form, and Function: Cell Cycle: Interphase, Mitosis, Cytokinesis Mitosis occurs when the nucleus of the cell divides into two identical nuclei with the The cell cycle can also cease during the G2 phase at the DNA replication site. Mitosis results in nuclear division, in which a full set of chromosomes is distributed to each of two daughter cells formed through cytokinesis, or cell division.
The prefix inter- means between, reflecting that interphase takes place between one mitotic M phase and the next.
- Cell Cycles: Interphase, Mitosis, Cytokinesis
Image of the cell cycle. Interphase is composed of G1 phase cell growthfollowed by S phase DNA synthesisfollowed by G2 phase cell growth.
At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter cells.
Mitosis precedes cytokinesis, though the two processes typically overlap somewhat. M phase During the mitotic M phase, the cell divides its copied DNA and cytoplasm to make two new cells.
M phase involves two distinct division-related processes: In mitosis, the nuclear DNA of the cell condenses into visible chromosomes and is pulled apart by the mitotic spindle, a specialized structure made out of microtubules.
Mitosis takes place in four stages: You can learn more about these stages in the video on mitosis. In cytokinesis, the cytoplasm of the cell is split in two, making two new cells.
Interphase - Wikipedia
Cytokinesis usually begins just as mitosis is ending, with a little overlap. Importantly, cytokinesis takes place differently in animal and plant cells. S phase is also the time when the cell produces a lot more phospholipids.
The amount of phospholipid doubles during S phase. Sciencing Video Vault G2 Phase The G2 phase is the time during which a cell replicates its organelles in preparation for mitosis.
Phases of the cell cycle
Not only does the DNA need to be divided, but so do the organelles. G2 is the last chance for the cell to make more protein in preparation for division.
G2 is necessary for the cell to make sure that all of the DNA is in intact; no breaks and no nicks. The G2 to mitosis transition is the last checkpoint before the cell commits to entering mitosis.
G0 Phase G0 phase can occur right after mitosis and right before G1 phase, or a cell in G1 phase can enter G0 phase. Entry into G0 is known as leaving the cell cycle.
Cells that mature to become highly specialized cells are said to differentiate. Cells exit the cell cycle and enter G0 in order to differentiate.The Cell Cycle (and cancer) [Updated]
Terminally differentiated cells are those that never enter the cell cycle again, meaning they stay in G0 and never divide. However, some cells can be triggered to leave G0 and re-enter G1, which allows them to divide again.