Practice question

MCQ

Question

Which of the following is incorrect about post-transcriptional modifications?

Options

Choose one · Correct answer highlighted

Splicing removes introns from pre-mRNA. A poly-A tail is added to the 5' end of mRNA. Correct A 5' cap is added to mRNA. These modifications occur in the nucleus.

Explanation

The **poly-A tail is added to the 3' end** of mRNA, not the 5' end.

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