Nuclear membrane and nucleolus
When the nucleus disappears during prophase, it fragments into vesicles containing membrane and nuclear pore proteins. These vesicles then fuse together to reform the nucleus during telophase.
The breakdown of the nucleus occurs in the prophase stage of mitosis. This is when the nuclear envelope disintegrates, allowing the chromosomes to be released into the cytoplasm for subsequent division.
The phase of mitosis where the nuclear envelope and nucleus disappear is called prophase. During prophase, the chromatin condenses into discrete chromosomes, and the spindle apparatus begins to form, facilitating the movement of chromosomes during cell division.
During prophase of mitosis, the number of cells remains constant. Prophase is the first stage of mitosis where the nucleus condenses and the chromosomes become visible, but the cell itself does not divide yet.
During prophase of cell division, the nucleus condenses and the chromatin (DNA and proteins) inside it becomes tightly coiled into chromosomes. The nuclear membrane also breaks down, allowing the chromosomes to become more visible and ready for division.
Nuclear envelope
The nucleus.
When the nucleus disappears during prophase, it fragments into vesicles containing membrane and nuclear pore proteins. These vesicles then fuse together to reform the nucleus during telophase.
The nuclear envelope.
The chromosomes in a cell's nucleus are only visible during the part of the cell cycle known as prophase. Prophase is the stage of mitosis in which chromatin condensation occurs.
The breakdown of the nucleus occurs in the prophase stage of mitosis. This is when the nuclear envelope disintegrates, allowing the chromosomes to be released into the cytoplasm for subsequent division.
The phase of mitosis where the nuclear envelope and nucleus disappear is called prophase. During prophase, the chromatin condenses into discrete chromosomes, and the spindle apparatus begins to form, facilitating the movement of chromosomes during cell division.
Chromosomes
CENTRIOLES
chromosomes
The centrosomes.
prophase