1.

In the genetic code dictionary, how many codons are used to code for all the 20 essential amino acids ?A. 61B. 60C. 20D. 64

Answer» Correct Answer - A
Out of 64 codons three (UAA, UAG , UGA) are chain terminating codons the translating mechanism is not able to read these codons and 61 codons are used to code all the 20 essential amino acids.


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