Genetic code. Definition

Medical Definition: Genetic code

Key information contained in genes expressing universal correspondence between the sequence of nucleic acids and proteins and forms the basis for the transmission of hereditary characteristics. This is an encrypted code by the arrangement of nucleotides in the polynucleotide chain of a chromosome that governs the expression of genetic information into proteins, ie, the sequence of amino acids in the polypeptide chain. Information on all genetically determined characteristics in living things, genetics is stored in DNA and encrypted using the 4 nitrogen bases. Each adjacent sequence of three bases (codon) governs the insertion of a specific amino acid. In RNA thymine is replaced by uracil. The information is passed from one generation to another through the production of exact replicas of the code.

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