Test: AP Biology

1.

Which of the following is not an example of eukaryotic post-transcriptional modification?

A poly-A tail is added to the 3' end

The 3' end of the growing strand is cleaved

Exons, or non-coding regions, are removed via splicing

A methylguanosine cap is added to the 5' end

After splicing, the exons are rejoined to form a final mRNA transcript

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