Question

In genetics, a reference is made to an abbreviated expression ‘AUG’. Write any three points of scientific information embodied in this combination of three letters.

Answer 1

The three letters AUG represent a specific codon that carries the following scientific information:

• Initiation Signal: It acts as the universal start codon, signalling the ribosome to begin the process of translation (protein synthesis).
• Amino Acid Specification: It specifically codes for the amino acid methionine (or N-formylmethionine in prokaryotes).
• Dual Function: It is the only codon that performs both a structural role (adding an amino acid within a polypeptide chain) and a regulatory role (initiating the reading frame).