Which of the following is false about the Mitosis stage of Prophase?

In the Mitosis stage of Prophase, several critical changes take place that prepare the cell for division. One of the hallmark features is the condensation of chromatin into distinct chromosomes, making them visible under a light microscope. This process is essential because, without condensation, the long strands of DNA would be too entangled for the orderly separation of genetic material during later stages.

Additionally, during Prophase, the nuclear membrane breaks down, leading to the disappearance of the nucleus. This fragmentation is necessary to allow the spindle apparatus to interact with the chromosomes effectively. The formation of the spindle is crucial, as it forms microtubule structures that will attach to the centromeres of the chromosomes. This attachment is pivotal for the correct segregation of chromosomes during the subsequent stages of mitosis.

The choice mentioning the removal of the cell membrane is false because, during Prophase, no such process occurs. The cell membrane remains intact throughout Prophase, and it does not undergo any significant changes until later stages in cell division, such as during cytokinesis, when the cell actually divides into two daughter cells. Understanding these key processes in Prophase helps clarify the overall timeline and mechanics of mitosis in cell division.