The Genoa, encoded byDNA from chromosomes, constitute the source of information genetic necessary for the proper functioning of cells and the human body as a whole. Understand the coding DNA is therefore an important element in medicine.
In June 2000, President Bill Clinton launched an announcement from the White House that would revolutionize biology and medicine: the first step of the sequencing of genome human had just been completed, the result of a decade of research carried out by an international consortium. For the first time, all the genes constituting our genetic heritage became accessible. This information covers some 25,000 genes distributed along our chromosomes. The message they carry will serve as a manual for making the protein who perform the various tasks necessary for the proper functioning of cells of our body.
DNA and the genetic code
What theDNA ? How does it replicate? What is the message carried by the genes? What are the steps that allow the gene to be decoded in order to synthesize molecules capable of acting?
This file retraces the major stages in the life of a gene and presents the main actors, that is to say the complex molecular machinery involved in either the transmission of information carried by the gene of a mother cell. to its descendants, or during the expression of this information during cell life.
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