Q.

Write the important features of genetic code?

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Detailed Solution

Features of Genetic code :
* Code is a triplet : It consists 3 nucleotides. 61 codons code 20 types of amino acids.
* Code is unambiguous : One codon codes for only one amino acid.
* Code is degenerate : Some amino acids are coded by more than one codon.
* Code is continuous : The codon is read in mRNA in a contiguous fashion. There are no punctuations.
* The code is nearly universal except in mitochondria and some protozoans.
* Initiator codon : AUG has dual function It codes for Methionine and act as initiator codon.
* Stop codons : UAA, UAG, UGA are stop codons.

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