Answer:
The codon AUG both codes for methionine and serves as an initiation site: the first AUG in an mRNA's coding region is where translation into protein begins. The other start codons listed by GenBank are rare in eukaryotes and generally codes for Met/fMet
The normal function of UGA is to terminate protein synthesis, and thus, depending on the conditions (see below), this codon may act as either nonsense or a Sec codon (codon = sequence)
Explanation:
