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

question 25

Multiple Choice

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.

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Definitions:

Fraction

A mathematical concept where a number is represented as a part of a whole, expressed as a numerator divided by a denominator.

Roman Numeral

A system of numerical notation that uses the letters I, V, X, L, C, D, and M to represent numbers.

Exponent

A mathematical notation indicating the number of times a number (the base) is multiplied by itself.

Base

A substance that accepts protons from acids according to the Brønsted-Lowry acid-base theory, or a substance that donates a pair of valence electrons to form a bond according to the Lewis definition.