How many codons and nucleotides are required to form a protein chain with 50 amino acids?

To form a protein chain containing 50 amino acids, you need 50 codons since each codon codes for one amino acid. However, the actual number of codons required in the mRNA sequence is 51 because you need one additional codon (stop codon) to signal the termination of translation.

Since each codon consists of three nucleotides, the calculation for nucleotides is:

• For 50 amino acids: 50 codons × 3 nucleotides = 150 nucleotides
• Including the stop codon: 51 codons × 3 nucleotides = 153 nucleotides

Additionally, the original DNA template would require 153 base pairs to code for this protein, and if you account for the start codon (AUG), the total mRNA sequence would have 154-156 nucleotides depending on whether you include untranslated regions. This demonstrates the fundamental relationship between nucleic acid sequences and protein structure in molecular biology.