What is the function of the poly A tail?
A)The poly A tail is required for the termination of translation,it is recognized by the release factor proteins
B)The poly A tail is required for the mRNA to resume its double helical structure
C)The poly A tail increases mRNA stability in eukaryotes
D)The poly A tail increases mRNA stability in prokaryotes
E)The poly A tail serves as a termination sequence for RNA polymerase III

Question

Quizplus · Accepted Answer

The poly A tail increases mRNA stability in eukaryotes by protecting the mRNA against rapid degradation by exonucleases. The longer the poly A tail, the more stable the mRNA molecule is, leading to a longer half-life and increased chances of translation.

What Is the Function of the Poly a Tail