Question

With respect to the Shine Dalgarno sequence, find the incorrect statement.

• A. 5'-AGGAGG-3'
• B. Helps in binding of 50S ribosomal unit
• C. Helps in binding of 30S ribosomal unit
• D. Present near initiation codon

Answer 1

The correct option is B Helps in binding of 50S ribosomal unit

• The Shine-Dalgarno (SD) Sequence is a ribosomal binding site in bacterial and archaeal messenger RNA, generally located around 8 bases upstream of the start codon(initiation codon) AUG.
• The six-base consensus sequence is AGGAGG; in Escherichia coli.
• It helps in the binding of the 30S ribosomal unit to start codon of mRNA.

So, the correct answer is 'Option B'.