Which of the following correctly describes the role of a poly-A tail?

Practice question

Question

Which of the following correctly describes the role of a poly-A tail?

Options

Choose one · Correct answer highlighted

It helps in DNA replication. It stabilizes mRNA and prevents degradation. Correct It is required for transcription initiation. It is found at the 5' end of mRNA.

Explanation

The **poly-A tail stabilizes mRNA and prevents degradation**, aiding in efficient translation.

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