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A lot of things happen during mitosis. When the cell is OUT of mitosis, chromosomes are not discernible from each other ; the shapeless substance they form is called 'chromatin', and genes can be (and are) expressed at that stage. Then prior to mitosis, chromosomes duplicate (this is called the 'Replication').
During mitosis now :
* Prophase: Chromosomes condense into the fully discernible "X-shaped" pairs that can be ordered by size. Each "X" is actually two identical chromosome molecules bound together ; genes are not expressed in this compact form.
* Prometaphase: At that stage, the nuclear membrane disappears.
// It is important because chromosomes are then accessible to the microtubules network. Actually two networks form, each from a center called centriole (one for each daughter cell, diametrically opposed on each side of the mother cell). //
* Metaphase: The microtubule networks expand and bind to one of the molecules of each chromosome (each branch of the "X").
* Anaphase: When citokinesis occurs they contract, thus separating each chromosome molecule from its duplicate (hopefully one chromosome molecule of each pair going in each daughter cell).
* Telophase: The nucleus membrane is then reformed in the daughter cells and chromosomes go back in chromatin form.
Disclaimer : the disappearance of nucleic membrane is NOT common to all eukaryota (although it is for all animals). Some species perform the whole process with an intact nuclear membrane.
What else can I help you with?
What is the phase in mitosis where the nuclear membrane disappears?
"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!!!
When does the nuclear membrane and nucleolus reappear?
The nuclear membrane reforms during late telophase of mitosis or meiosis, while the nucleolus reappears during interphase.
When does the nuclear membrane disappear during mitosis?
The nuclear membrane disappears during prophase of mitosis. This allows the chromosomes to be condensed and move freely within the cell. At the end of mitosis, during telophase, the nuclear membrane reforms around the separated chromosomes.
The nuclear membrane disappears and what appears late?
This is related to mitosis. Once the chromosomes are fully condensed, the nuclear envelop is disolved in order to let the mitotic spindle is put in it's place to migrate the chromatids to the poles. Once the chromatids have already migrated, the cytokinesis process take place, dividing the cell into two daughter cells that eventually rebuild their nuclear envelop.
What phase of mitosis begins when the nuclear membrane begins to fade?
The phase of mitosis that begins when the nuclear membrane starts to fade is called prometaphase. During prometaphase, the nuclear membrane breaks down, allowing the spindle fibers to attach to the chromosomes.
What is the phase in mitosis where the nuclear membrane disappears?
"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!!!
When does the nuclear membrane and nucleolus reappear?
The nuclear membrane reforms during late telophase of mitosis or meiosis, while the nucleolus reappears during interphase.
Nuclear membrane disappears.?
Prophase
When does the nuclear membrane disappear during mitosis?
The nuclear membrane disappears during prophase of mitosis. This allows the chromosomes to be condensed and move freely within the cell. At the end of mitosis, during telophase, the nuclear membrane reforms around the separated chromosomes.
Which phase does the nuclear membrane disappears?
prometaphase
During what phase does nuclear membrane reappear?
Disappears in prophase and reappears in telophase.
How is prophase different from telophase?
In Prophase, the nuclear membrane disappears. In telophase, the nuclear membrane re-forms.
What phase of mitosis does nuclear membrane disappear?
Prophase
The nuclear membrane disappears and what appears late?
This is related to mitosis. Once the chromosomes are fully condensed, the nuclear envelop is disolved in order to let the mitotic spindle is put in it's place to migrate the chromatids to the poles. Once the chromatids have already migrated, the cytokinesis process take place, dividing the cell into two daughter cells that eventually rebuild their nuclear envelop.
What phase of mitosis begins when the nuclear membrane begins to fade?
The phase of mitosis that begins when the nuclear membrane starts to fade is called prometaphase. During prometaphase, the nuclear membrane breaks down, allowing the spindle fibers to attach to the chromosomes.
What stage of mitosis where nuclear envelop disappears and the chromosomes form?
stage of mitosis when nuclear envelop disappears and the chromosomes form is the "PROPHASE"
What is the stage of mitosis where the nuclear membrane has completely disappeared?
in early stage of mitosis
