We Know That DNA and RNA (Each with Four Nucleotide

Multiple Choice

We know that DNA and RNA (each with four nucleotide components) both use a three nucleotide genetic code and 64 codons (4³ = 64) .Knowing that the minimum number of codons for the genetic code is 21 (20 amino acids,1 stop codon) ,what codon size would be required if only three nucleotides were present in the genome?

A) 2 nucleotides per codon
B) 3 nucleotides per codon
C) 4 nucleotides per codon
D) 5 nucleotides per codon
E) 6 nucleotides per codon