AP BIOLOGY

Detailed explanation-1: -A unique feature of the nucleus is that it disassembles and re-forms each time most cells divide. At the beginning of mitosis, the chromosomes condense, the nucleolus disappears, and the nuclear envelope breaks down, resulting in the release of most of the contents of the nucleus into the cytoplasm.

Detailed explanation-2: -Mitosis is the process in which a eukaryotic cell nucleus splits in two, followed by division of the parent cell into two daughter cells.

Detailed explanation-3: -During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells. Because this process is so critical, the steps of mitosis are carefully controlled by certain genes. When mitosis is not regulated correctly, health problems such as cancer can result.

Detailed explanation-4: -In order for your cells to reproduce they must be capable of dividing into new cells. This means they must be able to divide the nucleus. This occurs during a process called mitosis. Mitosis is the process of splitting the cell’s genetic material into two new nuclei.

Detailed explanation-5: -DNA replication occurs during this phase. The cell will continue to grow and many organelles will divide during their phase. Cell growth stops at this stage. Mitosis divides the nucleus into two nuclei, followed by cytokinesis which divides the cytoplasm.