Question

Base pairing between mRNA and which of the following rRNAs help in the selection of translation initiation site?

• A. 5.8S rRNA
• B. 5S rRNA
• C. 28S rRNA
• D. 16S rRNA

Answer 1

Answer:

D. 16S rRNA

• The mRNA contains a sequence known as Shine-Dalgarno sequence which is in proximity to the start codon.

• Base pairing between mRNA and 16S rRNAs help in the selection of translation initiation site.

• The Shine-Dalgarno sequence pairs to a portion of the 16S rRNA’s 3’ end.