How Does the Eukaryotic Ribosomal Small Subunit Recognize the Start

question 49

Multiple Choice

How does the eukaryotic ribosomal small subunit recognize the start codon on the mRNA?

• A) It binds an Met- tRNA to the first AUG codon it encounters.
• B) It binds an Met- tRNA to the first AUG codon after the Kozak sequence.
• C) It performs an ATP hydrolysis within the small subunit once it encounters a Met- tRNA already bound to the AUG.
• D) It undergoes a conformational charge that recruits other proteins when it hydrogens bonds to the correct tri- nucleotide sequence.
• E) It wraps the mRNA strand to bring initiation enhancer proteins into the vicinity of the start codon.

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