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Which one of the following is the starter codon?
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- AUG
- UGA
- UAA
- UAG
Correct Option: A
The start codon is the first codon of a messenger RNA (mRNA) transcript translated by a ribosome. The start codon always codes for methionine in eukaryotes and a modified Met (fMet) in prokaryotes. The most common start codon is AUG.