Why does the nuclear membrane disintegrate during mitosis?

Why do you think it is necessary to disintegrate the nuclear membrane during mitosis? The nuclear membrane must be temporarily removed so the chromosomes can be divided into the two cells.

What happens to the nuclear membrane in metaphase 2?

In metaphase II, the chromosomes line up individually along the metaphase plate. In anaphase II, the sister chromatids separate and are pulled towards opposite poles of the cell. In telophase II, nuclear membranes form around each set of chromosomes, and the chromosomes decondense.

Does the nuclear membrane break down in prophase 2?

Prophase II encompasses four different mechanisms; namely the tight wrapping of DNA into chromosomes, the dissolving of the nuclear membrane, migration of the centrosomes (when present), and the reconstruction of the spindle apparatus.

What phase does the nuclear membrane disintegrate?

Answer and Explanation: The nucleolus (a subunit of the nucleus) disappears and the nuclear membrane disintegrates during the prophase phase of mitosis (option c).

Why does the nuclear membrane dissolve during prophase?

The connection of microtubules to chromosomes is why the nuclear envelope needed to be broken down during prophase. The nuclear envelope would have gotten in the way. The microtubules from opposite ends of a dividing cell connect to the chromosomes during prophase.

In which phase of mitosis does the nuclear membrane disappear?

prophase
During prophase, the chromosomes condense, the nucleolus disappears, and the nuclear envelope breaks down.

Why must the nuclear membrane dissolve in prophase?

Microtubules are like ropes that will pull the chromosomes apart. In fact, the microtubules already connected to the chromosomes during prophase, long before metaphase. The connection of microtubules to chromosomes is why the nuclear envelope needed to be broken down during prophase.