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Messenger RNA (mRNA) has a poly-A tail.
Which of the following statements is FALSE regarding the poly-A tail on mRNA?
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The poly-A tail stabilizes mRNA to prevent degradation.
The poly-A tail aids in export of mRNA from the nucleus.
The poly-A tail is added to transcribed mRNA by poly-A polymerase.
The poly-A tail is an integral part of the open reading frame.
The poly-A tail can be composed of several hundred adenosines.