code, genetic defined in 1951 yearcode, genetic - code, genetic;
code, genetic - In protein synthesis, the exact sequence of amino acids laid down in the protein is determined by the sequence of nucleotides (there being 4 different nucleotides) in the Messenger RNA, which in turn depends on the sequence of nucleotides in DNA. The genetic code is the system of correspondence between nucleotide sequence and amino acid sequence. Each of the 20 amino acids is specified by a different arrangement, called a codon, of 3 adjacent nucleotides (triplet code). There are 64 possible arrangements of 3 nucleotides,. and many amino acids are specified by more than one triplet. The translation of the code, which occurs only in the nucleic acid to protein direction (the 'central dogma' of molecular biology), is performed by Transfer RNA.
near code, genetic in Knolik
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