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Subject - cell biology

Mitosis is the multiphase division of the cell nucleus in eukaryotes. In humans this process takes about an hour. The process is divided into the pro-, prometa-, meta-, ana-, and telophase (In contrast, see meiosis, also known as reduction division, which occurs in gametes). Mitosis is part of the cell cycle (German learning unit), which includes the G1 phase, S phase, mitosis, G2 phase, and in certain cells the G0 phase (resting phase). It directly follows replication, which occurs in the S phase. The affected cell retains its chromosome set:

Chromosome sets
SpeciesHaploid setDiploid set
Human (Homo sapiens sapiens)2346
Fruit fly (Drosophila melanogaster)48

Mitosis ensures that the daughter cells contain the same genetic material as the parent cells after cytokinesis, which follows immediately afterward.

See also: chromosomes

Recommended Learning Units

Cell Cycle, Mitosis, and MeiosisLevel 260 min.

BiochemistryBiological FundamentalsCell Cycle

Cell reproduction is based on the principle of cell division. In order to divide a cell into two identical daughter cells, all of the genetic material and all cell components must be duplicated. Animated illustrations demonstrate the cell cycle responsible for this, as well as illustrating cell division by mitosis and meiosis.