Question

What happens to the nuclear membrane after prophase?

Answer 1

Hint: Mitosis has five distinct morphological stages: prophase, prometaphase, metaphase, anaphase, and telophase. During the time spent chromosome arrangement and partitioning, each stage includes distinct steps. When mitosis is completed, the entire cell divides in two via an interaction known as cytokinesis.

Complete answer:
Prophase is the first stage of mitosis, occurring after the G2 stage of interphase. The parent cell chromosomes, which were copied during the S stage, gather during prophase and become many times more minimal than they were during interphase. Because each copied chromosome is made up of two indistinguishable sister chromatids joined at a point known as the centromere, these designs currently appear as X-formed bodies when viewed through a magnifying glass. The build-up cycle is catalysed by a few DNA-restricting proteins, including cohesion and condensing. Condensing structures rings that curl the chromosomes into profoundly conservative structures, whereas cohesin structures rings that hold the sister chromatids together.
During prophase, the mitotic axle also begins to form. As the cell's two centrosomes move toward the inverse shafts, microtubules gradually accumulate between them, framing the organisation that will later force the copied chromosomes apart.
When prophase is completed, the cell enters prometaphase, the second phase of mitosis. M-CDK phosphorylation of nuclear lamins during prometaphase causes the atomic layer to separate into various small vesicles. As a result, the axle microtubules now have direct access to the cell's hereditary material.
By the end of prophase, the atomic layer, nucleolus, and all cell organelles have vanished, and there is no distinction between nucleoplasm and cytoplasm.

Note:
As mitosis progresses, the microtubules connect to the chromosomes, which have successfully copied their DNA and adjusted across the cell's focal point. At that point, the axle tubules shorten and advance toward the cell shafts. As they move, they drag the one duplicate of each chromosome to the cell's inverse posts. This cycle ensures that each girl cell contains one precise copy of the parent cell's DNA.