Question

Identify the polarity from $a$ to $a^{\prime }$ in the diagram and mention how many more amino acids are expected to be added to this polypeptide chain.

Answer 1

The polarity in the diagram is from 5’ to 3’. The linking of two amino acids is accompanied by the loss of a molecule of water. A series of amino acids joined by peptide bonds form a polypeptide chain, and each amino acid unit in a polypeptide is called a residue. And only one amino acid will be added to the peptide chain due to the presence of stop codon UAA.