The initiator aminoacyl-tRNA complex base pairs with the start codon during translation initiation.

Master molecular genetics for the DAT with our targeted quizzes. Review key concepts through a variety of question formats and detailed explanations to boost your exam performance. Elevate your test preparedness today!

Multiple Choice

The initiator aminoacyl-tRNA complex base pairs with the start codon during translation initiation.

Explanation:
Translation initiation uses an initiator tRNA carrying methionine to base pair with the start codon AUG, establishing the reading frame. In bacteria this initiator is formylated methionine (fMet-tRNAfMet), but its anticodon still pairs with AUG. The other aminoacyl-tRNAs deliver their amino acids during elongation by pairing with downstream codons, not with the start codon.

Translation initiation uses an initiator tRNA carrying methionine to base pair with the start codon AUG, establishing the reading frame. In bacteria this initiator is formylated methionine (fMet-tRNAfMet), but its anticodon still pairs with AUG. The other aminoacyl-tRNAs deliver their amino acids during elongation by pairing with downstream codons, not with the start codon.

Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy