metaphase
In mitosis the nuclear envelope begins to break in prophase. In meiosis the nuclear envelope begins to break in prophase 1.
Interphase Prophase Metaphase Anaphase Telephase.
The phase of mitosis that the nucleus forms is the prophase phase.
The nuclear membrane reforms around the nucleus during Telophase, the last phase of mitosis.
"scientist have not discovered WHY it happens"It does not matter if scientists have discovered it or not, but the nuclear membrane disappears during PROPHASEHope this helped!!!
Prophase
In mitosis the nuclear envelope begins to break in prophase. In meiosis the nuclear envelope begins to break in prophase 1.
Interphase Prophase Metaphase Anaphase Telephase.
Phase 1- Mitosis begins. Chromosomes condense from long strands into rodlike structures. Phase 2- The nuclear membrane is dissolved. Paired chromatids align at the cell's equator. Phase 3- The paired chromatids separate and move to opposite sides of the cell. Phase 4- A nuclear membrane forms around each set of chromosomes, and the chromosomes decondense. Mitosis is complete.
The nuclear membrane fades during the prophase of mitosis or meiosis. This is the stage when the membrane begins to break down and disappear, allowing the chromosomes to become more condensed and accessible for cell division.
The phase of mitosis that the nucleus forms is the prophase phase.
telophase
The nuclear membrane reforms around the nucleus during Telophase, the last phase of mitosis.
Nuclear envelope begins to reappear in the telophase stage of mitosis.
"scientist have not discovered WHY it happens"It does not matter if scientists have discovered it or not, but the nuclear membrane disappears during PROPHASEHope this helped!!!
The first phase of mitosis is prophase. The last phase of mitosis is telophase.
Prophase