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In which group of eukaryotic organisms does the nuclear envelope remain intact during mitosis?
The group of eukaryotic organisms in which the nuclear envelope remains intact during mitosis is known as closed mitosis. This is in contrast to open mitosis, where the nuclear envelope breaks down. Closed mitosis is observed in organisms such as fungi and animals.
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.
What stage does the nuclear envelope break down?
The nuclear envelope breaks down during the prophase stage of mitosis. This breakdown allows the chromosomes to be released into the cytoplasm for proper alignment and separation during cell division.
Which stage of the following does nuclear envelope break down?
The nuclear envelope breaks down during prometaphase of mitosis and prophase of meiosis. This breakdown allows the chromosomes to be released from the nucleus and prepare for the subsequent stages of cell division.
When does the nuclear envelope break down into vesicles?
To be or not to be, that is the question.
In what phase of mitosis are the nuclear envelope and nucleolus broken up and absorbed?
The nuclear envelope and nucleolus are broken down and absorbed during the prophase of mitosis. This prepares the cell for the division of its genetic material.
When in the cell cycle does the nuclear membrane begin to fade?
The nuclear membrane begins to fade during the prophase stage of mitosis, which is the phase in the cell cycle when the chromatin condenses into chromosomes and the nuclear envelope breaks down. This allows the chromosomes to be better organized for separation during cell division.
Which two phases are the nuclear membranes present?
The nuclear membranes are present during the interphase and the prophase of mitosis. During interphase, the nuclear envelope surrounds the nucleus, protecting the genetic material. In prophase, the nuclear membrane begins to break down as the cell prepares for division. After this phase, the nuclear envelope re-forms during telophase.
During which stage of mitosis does the nucleus break down?
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.
What phase of mitosis has no clear nucleus?
The phase of mitosis that has no clear nucleus is called prometaphase. In this phase, the nuclear envelope breaks down, allowing the chromosomes to become more condensed and visible, but the formation of the new nuclear envelope has not yet occurred.
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.
What occurs during prophase of mitosis?
The DNA condenses eventually into chromosomes.The nucleoli disappear.The nuclear envelope breaks down.
