Science

What is cell cycle? »Its definition and meaning

Anonim

It is known as an ordered sequence of events that links cell proliferation and division, where the mother cell gives rise to two daughter cells. This can be divided into two phases, the interface and phase M or mitosis. The cell cycle is also responsible, especially in multicellular organisms, for the development, growth and renewal of the same cells.

The interface comprises the stage of the cell cycle in the genetic material or DNA, it is duplicated like other cell phones. It is divided into three sub-stages, G1, S and G2, these being complex intervals of the cycle. Mitosis is part of the stages of the cell cycle in which the genetic material is duplicated and distributed equally. Like the interface, it is divided into 4 parts, which are known as prophase, anaphase, metaphase and telophase. This is followed by cytokinesis or cytodieresis, which corresponds to the final part of the cell cycle, where the cytoplasmic material is distributed equally, resulting in the formation of two daughter cells identical to the mother.

The subject of the cell cycle and its process is the protagonist of great scientific debates, especially on a subject as delicate as cloning. This process of creating life artificially by obtaining one or more individuals from a cell group or a nucleus of another individual, distributing genetic equal parts, thus obtaining beings identical to the original or creating a replica of the existing one. The use of the cell cycle for the creation of genetically similar beings loses its essence with the lack of maternal and paternal combinations, which generates individuals that, very contrary to resembling, are different from each other. That is why the issue of the cell cycle scientifically speaking causes such a stir and many times suspicion.

There is a series of points called "checkpoints" of the cycle. They examine the external and internal conditions before deciding to proceed to the next phase. When this control is lost, cells can work incorrectly and many times under conditions in which they can even obtain damaged DNA, which can cause the creation of tumors and the proliferation of uncontrolled cells.