Which characteristics describe the genetic code of humans? Learn genetic code characteristics with free interactive flashcards. It is typically discussed using the “codons” found in mRNA, as mRNA is the messenger that carries information from the DNA to the site of protein synthesis. The code is a triplet codon: The nucleotides of mRNA are arranged as a linear sequence of codons, each codon consisting of three successive nitrogenous bases, i.e., the code is a triplet codon. In all living organisms, Genetic code is the same. Genetic Code-Characteristics (Table-1) 1) Specificity Genetic code is specific (Unambiguous) A specific codon always codes for the same amino acid. The genetic code is universal. UUU codes for Phenyl Alanine, it cannot code for any other amino acid. Properties of genetic code. Some of the most important properties of genetic codes are as follows: 1. All known living organisms use the same genetic code. Genetic Code-Universal Universal- In all living organism Genetic code is the same. e.g. The properties or the characteristics of the genetic code are stated below: The genetic code is the set of rules which dictates the linear sequence of nucleotides in the linear sequence of a polypeptide. d) Polarity: Genetic code could be read only in 5'-3'direction on m-RNA. Genetic Code-Characteristics Specificity- Genetic code is specific (Unambiguous) A specific codon always codes for the same amino acid.e.g. 2) Universal. Remaining 61 codons code 20 different aminoacids. They specify how a nucleotide sequence of an mRNA is translated into the amino acid sequence of a polypeptide Start or initiation codon is AUG while UAG, UAA, UGA are the stop or termination codes. The genetic code has a number of important characteristics. Each codon codes for just one amino acid (or start or stop). The eight important properties of genetic code are: (1) Code is a Triplet (2) The Code is Degenerate (3) The Code is Non-overlapping (4) The Code is Comma Less (5) The Code is Unambiguous (6) The Code is Universal (7) Co-linearity and (8) Gene-polypeptide Parity. Characteristics of genetic code . The genetic code is unambiguous. For example, if a protein consists of 100 aminoacids, there will be 300 nucleotide bases in the genetic code (100 codons). This polarity is the important aspect of the genetic code.It also has start and stop signals. The genetic code is the set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins (amino acid sequences) by living cells. For example, lysine has two codons AAA and AAG. 1. Out of 64 codons, three codons are called stop codons UAA, UAG and UGA. Biochemistry For Medics 7 8. UUU codes for Phenyl Alanine, it can not code for any other amino acid. 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