Definition of Cell Nucleus

At the behest of the biology, the concept of core mobilenames the membranous organelle that has been arranged in the center of eukaryotic cells. Its great importance happens because it appears contains most of the genetic material of the cell and that it is organized into many linear molecules of DNA, of considerable length, and that make up complexes that have a great variety of proteinSuch is the case of histones, which are the ones that make up chromosomes. The set of genes of the aforementioned chromosomes is called nuclear genome.

Another outstanding function of this nucleus is precisely to protect the integrity of these genes and to watch over any type of cellular activity. For example, the nucleus is considered as the center from which the cell is controlled.

The nuclear envelope It is the supreme structure that makes up the nucleus and that consists of a double membrane that absolutely surrounds the organelle and also separates the indicated content from the

cytoplasm. There are also the nuclear pores which are the ones that facilitate the passage through the membrane, especially with regard to substantial issues such as the expressiongenetics and the maintenance chromosomal.

The interior of the nucleus, despite not having a membranous subcompartment in its content, is not uniform, presenting a series of subnuclear bodies which are made up of proteins, molecules of RNA and unique segments of chromosomes.

The cell nucleus was the first organelle that science would discover, the oldest antecedent that we have of it is due to Dutch scientist Anton van Leeuwenhoek, who would be a pioneer in microscopic observations and after one of these he left the organelle immortalized in a He drew, back in the seventeenth century. More precisely, he observed through one of the microscopes that he made a hole, which would be the clear nucleus, in the erythrocytes of salmon.

Later, in the 19th century, the naturalists Franz Andreas Bauer and Robert Brown They would also describe it with greater precision and clarity, from this moment with the base seated they began to delve into the details of this particular element.

Cell Core Topics