In prophase, the nucleolus disappears and chromosomes condense and become visible. … In telophase, chromosomes arrive at opposite poles, and nuclear envelope material surrounds each set of chromosomes. Finally, in cytokenesis, the two daughter cells are separated.
Are prophase and telophase opposites?
In what sense may prophase and telophase in mitosis be characterized as opposites? In telophase, the spindle formed in prophase comes undone. The nuclear envelope that broke down in prophase has reformed and multiplied into two. Whatever occurs in prophase is opposite in telophase.
Why is prophase the opposite of telophase?
Each chromosome consists of two chromatids that disappears from early prophase to late prophase. The nuclear membrane also starts disappearing in late prophase. In telophase opposite poles of the chromosomes lose their identity and nuclear membranes is formed around the daughter nuclei. … So, it is reverse of prophase.
What happens in the 4 stages of mitosis?
1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres 2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell) 3) Anaphase: sister chromatids are pulled to opposite poles of the cell 4) Telophase: nuclear envelope …
How is prophase related to mitosis?
Prophase is the first phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses.
What is the function of prophase 1?
Prophase I highlights the exchange of DNA between homologous chromosomes via a process called homologous recombination and the crossover at chiasma(ta) between non-sister chromatids. Thus, this stage is important to increase genetic variation.
What is the reverse of prophase called?
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 is telophase mean in science?
Telophase is the fifth and final phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. … During telophase, a nuclear membrane forms around each set of chromosomes to separate the nuclear DNA from the cytoplasm.
Where does mitosis occur in the body?
Mitosis is an active process that occurs in the bone marrow and skin cells to replace cells that have reached the end of their lives. Mitosis occurs in eukaryotic cells. Although the term mitosis is frequently used to describe the entire process, cell division is not mitosis.
What are the two parts of cell division?
There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells.