However , many RNAs do not code for protein ( about 97 % of the transcriptional output is non-protein - coding in eukaryotes ) .
The coding sequence of the mRNA determines the amino acid sequence in the protein that is produced .
Many RNAs do not code for protein ( about 97 % of the transcriptional output is non-protein - coding in eukaryotes ) .
The coding sequence of the mRNA determines the amino acid sequence in the protein that is produced .