Which of the following best describes the function of poly(A)tails for eukaryotic mRNAs?
A)They are required for accurate translation.
B)They have a protective role against degradation.
C)They signal transcription termination.
D)They function as splice sites.
E)No role has been observed for these features.

Question

Quizplus · Accepted Answer

Poly(A) tails are added to the 3' end of eukaryotic mRNAs and protect them against degradation by exonucleases. They also play a role in nuclear export and translation initiation.

Which of the Following Best Describes the Function of Poly(A)tails