Which of the Following is a Characteristic of ARE-Containing MRNAs

Question

Which of the following is a characteristic of ARE-containing mRNAs?
A)Class II AREs consist of at least 2 overlapping copies of UUAUUUA(U/A)(U/A).
B)Class I AREs contain 1-3 copies of the pentanucleotide AUUUA with only A-rich regions.
C)Class III AREs contain a U-rich sequence with the typical AUUUA element.
D)Approximately 18% of analyzed human mRNA sequences belong to the ARE-containing family.

Accepted Answer

Class II AREs are characterized by having at least 2 overlapping copies of the sequence UUAUUUA(U/A)(U/A), which is a defining feature of this class of AREs.