Where does translation initiate on the mRNA?

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Multiple Choice

Where does translation initiate on the mRNA?

Explanation:
Translation begins at the AUG start codon on the mRNA, which marks the first codon to be read and sets the reading frame. An initiator tRNA carrying methionine (or formyl-methionine in bacteria) binds there, with the help of initiation factors, to assemble the ribosome and start protein synthesis. The stop codon UAA signals termination when reached, not initiation. The poly-A tail is involved in mRNA stability and translation efficiency but does not mark where translation starts. The promoter is a DNA element that controls transcription, not translation. So AUG is the initiation site for translation.

Translation begins at the AUG start codon on the mRNA, which marks the first codon to be read and sets the reading frame. An initiator tRNA carrying methionine (or formyl-methionine in bacteria) binds there, with the help of initiation factors, to assemble the ribosome and start protein synthesis. The stop codon UAA signals termination when reached, not initiation. The poly-A tail is involved in mRNA stability and translation efficiency but does not mark where translation starts. The promoter is a DNA element that controls transcription, not translation. So AUG is the initiation site for translation.

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