What statement is not true about the Shine-Dalgarno sequence?
A)It is a pyrimidine-rich region of mRNA.
B)It is present only in prokaryotes.
C)It is complementary to a sequence of an rRNA sequence.
D)It helps position the initiation codon at the P site on the ribosome.

Question

Quizplus · Accepted Answer

The Shine-Dalgarno sequence is not a pyrimidine-rich region of mRNA; it is actually a purine-rich region, typically found upstream of the start codon in the mRNA of prokaryotes, where it helps in the initiation of translation by aligning the mRNA on the ribosome.

What Statement Is Not True About the Shine-Dalgarno Sequence