What is the universal translation start codon that codes for Methionine in eukaryotic protein synthesis?
Answer and explanation
Correct answer: D. AUG
- Step 1: Protein synthesis initiates when the small ribosomal subunit recognizes the initiator codon on mRNA. Step 2. AUG is the universal start codon that directs incorporation of methionine (or formylmethionine in prokaryotes). Answer: AUG. Why not the others: UAA is the ochre stop codon; UAG is the amber stop codon; UGA is the opal stop codon.
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