The genetic code of a particular organism uses 4 base codons, out of which the 3rd base is completely unimportant and not informative. if each codon is associat

The genetic code of a particular organism uses 4 base codons, out of which the 3rd base is completely unimportant and not informative. If each codon is associated with just one amino acid and there exists a single stop codon, how many amino acids can possibly be used by the organism for protein synthesis? (a) 63 (b) 255 (c) 32 (d) 203