The organisms living have essential units, the cells. The cell cycle is organized into a series of differentiated steps and metaphase is one of the most characteristic. If we take into account the lexical formation of the term, we conclude that it is composed of the Greek prefix meta, which also means the word phase, which comes from the Greek phasis and which means manifestation, appearance or action of showing oneself.
cell division
If we take human cells as a reference , they are formed with the 46 chromosomes of the progenitors. The first cell or oocyte of the new organism is potentially a fully developed new individual . For this to be viable, a process of cell replication must take place . Metaphase
In a first phase, the oocyte is divided into two equal cells and each one is programmed to grow and divide into other daughter cells. Thus, with a more complex cell structure , the zygote is formed, which continues to divide until it forms a new structure, the embryo. The embryo follows the process of duplication until the formation of a new human being. At all these stages, the same genetic information is maintained .
The cell cycle is divided into two major periods: interface and mitosis. The first is in turn divided into three phases: G1, S and G2 (in the first, the cells are in constant growth; in the second, the genetic material is duplicated and in the third, the cell prepares for its definitive division through the synthesis of proteins).
In mitosis, hereditary material is evenly divided.
Metaphase is the second phase of mitosis and a procedure for controlling cell development takes place.
During the process of mitosis there are several phases: prophase, metaphase, anaphase and telophase. In prophase, the centrioles located in the cell’s nucleus move apart to prepare the transmission of chromosomes to the next cell. Metaphase
In metaphase, chromosomes are located in the central part of the cell forming a line (this phenomenon is known as equatorial plate or mitotic spindle). At this stage of cell mitosis, DNA is in the form of a chromosome, each of which is composed of two chromatics that are dispersed in the cell’s cytoplasm.
In parallel, the centrioles are on opposite sides of the cell and it is from these structures that the mitotic spindle is formed
In simple terms, it can be said that there is a control process in cell development in the metaphase, as it has been proven that the DNA molecules are placed in the correct position to be distributed in an equitable way.
Once the chromosomes are organized in the cell, an anaphase or separation of chromosomes occurs. Finally, in telophase, new envelopes are created in the cell nucleus. Metaphase
