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The important features of genetic code a...

The important features of genetic code are
a) It is universal
b) It is commaless
c) It is not degenerate
d) Third base is not always specific.

Text Solution

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(1) The codon is triplet, 61 codons code for aminoacids and 3 codons donot code for any aminoacids called stop codons.
(2) One codon codes for only one aminoacid, hence it is unambiguous and specific.
(3) Some aminoacids are coded by more than one codon, hence the code is degenerated.
(4) The codon is read in mRNA in a contiguous fashion. There are no punctuations.
(5) The code is nearly universal : For Fx : UUU code for phebylalanine (Phe) in Bacteria or Humans.
(6) AUG has duel functions. It codes for methionine and also acts as initiator codon.
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