Before Mitosisīefore mitosis begins, the chromosomes in the nucleus of the cell undergo replication. Therefore, organisms without nuclei (prokaryotes) miss out on this impressive process. The key to mitosis occurring is the presence of a nucleus. Mitosis allows for some organisms to main alternating life stages (asexual and sexual, such as fungi). This is the one key process that sustains populations of asexual organisms. Mitosis is also important in organisms which reproduce asexually: this is the only way that these cells can reproduce. ![]() Mitosis is the reason we can grow, heal wounds, and replace damaged cells. For you to stay alive and fully functional, these cells need to be continuously replaced. Cells continuously die this process is termed apoptosis (programmed cell death). It is continuously occurring throughout our bodies it is even happening while you are reading this. It is the process of cell renewal and growth in a plant, animal or fungus. ![]() Mitosis happens in all eukaryotic cells (plants, animals, and fungi). ![]() Now, what is mitosis as a process? Mitosis is the process in cell division by which the nucleus of the cell divides (in a multiple phase), giving rise to two identical daughter cells. This term was based on the warped thread appearance of the chromatin of the cell nucleus in the first stages of mitosis. In 1887, the German anatomy biologist, Water Fleming, coined the term mitosis which comes from the Greek language and translates to “wrap thread” from mitos and “act or process” from the osis part of mitosis.
0 Comments
Leave a Reply. |