Biology genetics | Page 4

Cell Cycle cont.

Cytokinesis is the shortest stage out of the three basic stages. In this stage, the cytoplasm in the cell splits apart and the cell fully turns into two identical cells. Both of the daughter cells undergo the cell cycle and duplicate over and over again.

Cytokinesis

Meiosis is a type of cell division that produces gametes or haploid cells instead of diploid or somatic cells. This happens a bit differently in male sex cells than in female sex cells. Meiosis in males can be divided into six different stages including cytokinesis. The six stages are very similar to the ones in mitosis, except the cells go through the process twice. The first one is prophase which is the same as the prophase in mitosis. Next, they do something that they do not do in mitosis which is called crossing over. When a chromosome crosses over with another chromosome they exchange a chromatid with one another. They do this for two possible reasons: to repair damaged areas in the genetics or for genetic diversity. Then, they do all of the other stages that they would do in meiosis to make two daughter cells called sperm cell prosecutors They go through this process one more time to make four sperm cells. Meiosis in females is only a little bit different. Instead of making four sex cells it only makes one egg cell and three polar bodies.

Meiosis

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