The chart below shows that the amino acid serine is coded for by the nitrogenous bases UCA
According to the RNA Codon Chart, which of the following statements is true?
1 ) AAA is the only code for lysine.
2 ) AUG codes for both methionine and valine.
3 ) Isoleucine is the only animo acid coded for by AUU
4 ) Arginine is one of the several amino acids coded for by AGA
