Table of Contents
What is the nuclear membrane disintegrates during mitosis?
A unique feature of the nucleus is that it disassembles and re-forms each time most cells divide. At the beginning of mitosis, the chromosomes condense, the nucleolus disappears, and the nuclear envelope breaks down, resulting in the release of most of the contents of the nucleus into the cytoplasm.
What phase does the nuclear membrane reappear?
telophase
The anaphase is the third stage of nuclear division during which the pair of chromosomes separate and migrate to opposite poles of the nucleus. During telophase, the last stage of mitotic division, the nuclei and nuclear membrane reappear, and the two new nuclei are formed.
What does the nuclear membrane dissolve?
During prophase, the chromosomes condense and the nuclear envelope dissolves. During metaphase, the chromosomes align at the center of the cell. During anaphase, the sister chromatids are separated and pulled to opposite ends of the cell.
Does the nuclear membrane reform in telophase 1?
In telophase I, the microtubules break down, the nuclear membrane reforms, and the chromosomes return to an uncondensed state. The cell then divides into two haploid daughter cells by cytokinesis.
What happens to the nuclear membrane during anaphase?
During anaphase, the sister chromatids are separated simultaneously at their centromeres. The separated chromosomes are then pulled by the spindle to opposite poles of the cell. Finally, during telophase, a nuclear membrane forms around each set of chromosomes to separate the nuclear DNA from the cytoplasm.
In which phase of mitosis does the nuclear membrane reappear group of answer choices?
During telophase, chromosomes arrive at opposite poles and unwind into thin strands of DNA, the spindle fibers disappear, and the nuclear membrane reappears.
Why is it necessary that the nuclear membrane disintegrates during mitosis?
19. 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.
Does the nuclear membrane reform in telophase 2?
Telophase II At this stage, the sister chromatids of each chromosome are already separate and during this phase, they get surrounded by a new nuclear membrane.
Why does the nuclear membrane disappear during mitosis?
Protein tubes called microtubules connect the chromosomes that align in the middle during metaphase to opposite ends of the dividing cell. Microtubules are like ropes that will pull the chromosomes apart. The connection of microtubules to chromosomes is why the nuclear envelope needed to be broken down during prophase.