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late prophase (aka prometaphase)
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∙ 14y ago
Midnight Blue
Prophase
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Why does the nuclear envelope break down in prophase?
If the nuclear envelope didn't break down, the spindle would not attach to the kinetochore proteins on the condensed chromosomes in prometaphase because the nuclear envelope would be in the way.
When does the nuclear envelope break down into vesicles?
To be or not to be, that is the question.
What happens to chromosomes before the nuclear membrane breaks down in mitosis?
Before the nuclear envelope of a cell breaks down during the mitosis process, the DNA has to be duplicated. After the envelope dissolves, the chromosomes separate, then the cell finally splits.
Which stage of the following does nuclear envelope break down?
the nuclear envelope breaks down during prophase near the same time the chromatin condenses.
What stage does the nuclear envelope break down?
During the interphase
What occurs during prophase of mitosis?
The DNA condenses eventually into chromosomes.The nucleoli disappear.The nuclear envelope breaks down.
The nucleolus disappears and the nuclear envelope breaks down?
Prophase! Its one of the four processes of Mitosis.
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 and why does the nuclear envelope break down during cell replication?
during prophase, in order to allow microtubules to attach to the duplicated chromosomes
What is mean by open mitosis and closed mitosis?
Open mitosis occurs in most animal cells where the nuclear envelope breaks down ("opens" before the chromosomes separate. Closed mitosis occurs in some fungi, such as Aspergillusand Saccharomycesspecies, where the chromosomes divide within an intact ("closed") cell nucleus.
Why is it important for the nuclear membrane to be broken down during mitosis?
The nuclear membrane breaks down during prophase, while the Deoxyribonucleic Acid (DNA) The nuclear membrane must break down to allow the chromosomes to be pulled apart and away from the area of the former nucleus towards the pole where the daughter cell will be formed. If the nuclear membrane did not break down the spindle fibers would not be able to reach the chromosomes and they would not be moved towards opposite poles of the cell.
When do chromosomes become visible in the nucleus of a cell?
During prophase, the first stage of mitosis, the chromosomes become visible as distinct structures. The nuclear envelope also now breaks down, and a spindle forms.
