The polypeptide consists of 27 amino acids. Determine the number of nucleotides in the region of the gene that encodes

The polypeptide consists of 27 amino acids. Determine the number of nucleotides in the region of the gene that encodes the primary structure of this polypeptide, the number of codons per m-RNA corresponding to these amino acids, and the number of t-RNA molecules involved in the biosynthesis of this polypeptide.

1) the genetic code of DNA is triplet, therefore, the region of the DNA gene encoding a polypeptide of 27 amino acids contains 27 x 3 = 81 nucleotides;
2) the informational part of the i-RNA contains 27 codons (the codon includes three nucleotides);
3) for the biosynthesis of this polypeptide, 27 t-RNA molecules are needed, since one t-RNA transports one amino acid to the site of protein synthesis.

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