Question

Dual functions of codon AUG

• A. \( \text{Initiator codon and code for phenylalanine} \)
• B. \( \text{Universal codon and code for phenylalanine} \)
• C. \( \text{End codon and code for methionine} \)
• D. \( \text{Initiator codon and code for methionine} \)

Hint:

Remember, AUG is the start codon in translation and codes for methionine, which is important for the initiation of protein synthesis.

Answer 1

The Correct Option is D

Step 1: The codon AUG serves dual functions in protein synthesis. It acts as the initiator codon, signaling the start of translation. Additionally, it codes for methionine, the first amino acid incorporated into the polypeptide chain during protein synthesis. Therefore, the correct option is that AUG serves as the initiator codon and codes for methionine.