A) Single nucleotide
B) Two nucleotides
C) Three nucleotides
D) Four nucleotides
Correct Answer: C
Solution :
It was George Gamow, a physicist, who argued that since there are only 4 bases and if they have to code for 20 amino acids, the code should constitute a combination of bases. He suggested that in order to code for all the 20 amino acids, the code should be made up of three nucleotides. This was a very bold proposition, because a permutation combination of \[{{4}^{3}}(4\times 4\times 4)\] would generate 64 codons; generating many more codons than required.
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