How Does the Eukaryotic Initiation Complex Locate the Correct Start

question 38

Multiple Choice

How does the eukaryotic initiation complex locate the correct start codon?

• A) The initiation complex moves the small ribosomal subunit through the 5' UTR, scanning for the start AUG.
• B) The correct start codon is the first ATG encountered downstream of the Kozak sequence.
• C) The pre- initiation complex moves the ribosome through the 3' UTR, scanning for the Kozak sequence.
• D) The correct start codon is the formyl- ATG, which will encode for fMet in the protein.
• E) The true start codon is the first ATG encountered downstream of the Shine- Dalgarno sequence.

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