I-RNA is 156 nucleotides long. determine the number of amino acids included in the protein encoded

I-RNA is 156 nucleotides long. determine the number of amino acids included in the protein encoded by it, the number of t-RNA molecules involved in the biosynthesis of this protein and the number of triplets in the gene encoding the primary structure of the protein. explain the results obtained.

According to the DNA code, three nucleotides (monomer of the DNA molecule) are responsible for one amino acid, sequentially located one after another – a triplet. I-RNA nucleotides correspond to those of DNA.

On m-RNA – 156 nucleotides. We divide this number by three – 156: 3 = 52. At the beginning and at the end of the m-RNA molecule there is a triplet that does not encode a single amino acid. Therefore: 52 – 2 = 50. One t-RNA carries only one amino acid.

Answer: The number of amino acids encoded with i-RNA – 50; triplets on i-RNA – 52; molecules

t-RNA – 50.