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Solution


Q.

Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology              [2019]
1 Genetic code is specific.  
2 Genetic code is not ambiguous.  
3 Genetic code is redundant.  
4 Genetic code is nearly universal.  

Ans.

(4)

As genetic code is nearly universal means almost all organisms (from a virus, bacteria to a tree or human being) will have amino acids coded by same kind of codons as given in checkerboard. So, this property is utilised to produce human insulin using bacteria.