Mitosis ends with telophase, or the stage at which the chromosomes reach the poles. The nuclear membrane then reforms, and the chromosomes begin to decondense into their interphase conformations. Telophase is followed by cytokinesis, or the division of the cytoplasm into two daughter cells.
What happens to the DNA during telophase?
During telophase, a nuclear membrane forms around each set of chromosomes to separate the nuclear DNA from the cytoplasm. The chromosomes begin to uncoil, which makes them diffuse and less compact.
What happens to a cells DNA amount at the end of telophase?
At the end of telophase I and the process of cytokinesis when the cell divides, each cell will have half the chromosomes of the parent cell. The genetic material does not duplicate again, and the cell moves into meiosis II.
Does DNA condense during telophase?
Finally, there’s telophase: A nuclear envelope forms in each cell and DNA de-condenses into chromatin.
What happens to the chromosomes in late telophase?
During late telophase, the chromosomes de-condense as the histones assume a relaxed state. It is only when they are in this state that the cell can access the chromosomal DNA in order to manufacture proteins. DNA in the de-condensed state is difficult to see, even with a microscope.
What stage occurs after cytokinesis?
The G1 phase is a period in the cell cycle during interphase, after cytokinesis (process whereby a single cell is divided into two identical daughter cells whenever the cytoplasm is divided) and before the S phase. For many cells, this phase is the major period of cell growth during its lifespan.
How are the cells formed at the end of telophase alike?
During mitosis, each duplicated chromosome is evenly divided. Thus, during telophase two identical nuclei are created. These cells will function in the same way, and can be used to build entire organisms from a single zygote, or replace cells which have been damaged.
What happens at the end of telophase 2?
Finally, during telophase II, the chromosomes are enclosed in nuclear membranes. Cytokinesis follows, dividing the cytoplasm of the two cells. At the conclusion of meiosis, there are four haploid daughter cells that go on to develop into either sperm or egg cells.
What are the final results after telophase 2 and cytokinesis are finished?
The complete movement and separation of sister chromosomes mark the telophase II. This will then be followed by cytokinesis, wherein each of the two cells produced from meiosis I will give rise to two daughter cells, resulting in a total of four genetically dissimilar haploid cells.
What happens to a cell during cytokinesis?
Cytokinesis is the physical process that finally splits the parent cell into two identical daughter cells. During cytokinesis, the cell membrane pinches in at the cell equator, forming a cleft called the cleavage furrow.
Do chromosomes relax in telophase?
The nuclear membrane re-forms and the chromosomes relax. Sister chromatids separate and move toward opposite poles.
Which phase is the reverse of prophase?
D TELOPHASE. The last stage of mitosis, telophase, is in many ways the reverse of prophase. When the two sets of halved chromosomes have reached their destination, the spindle disappears and the nuclear membrane is formed around each new nucleus.
What happens during prophase?
During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes. … The sister chromatids are pairs of identical copies of DNA joined at a point called the centromere.