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Solution


Q.

Which one of the following is the starter codon                  [2016]
1 UAA  
2 UAG  
3 AUG  
4 UGA  

Ans.

(3)

Polypeptide synthesis is signalled by two initiator codons or start codons i.e., AUG (methionine codon) and rarely by GUG (valine codon).