"AUG"codon is an_________.

Initiation codon

The correct answer is Option (2) - Initiation codon

"AUG" is the most common start/initiation codon. AUG has dual functions. It codes for Methionine (met) , and it also act as initiator codon.The start codon specifies the first codon of mRNA transcript that is translated by a ribosome. This is the codon which is present as the first codon in the mRNA.

UAA, UAG, UGA are stop terminator codons