The Fact That Actinomycin D Does Not Inhibit Polyadenylation Supports

Question

The fact that actinomycin D does not inhibit polyadenylation supports the fact that
A)polyadenylation occurs pre-transcription of mRNA.
B)polyadenylation occurs during transcription.
C)polyadenylation occurs post-transcription.
D)it happens in the nucleus.
E)it happens in the cytoplasm.

Accepted Answer

The fact that actinomycin D, which inhibits transcription, does not inhibit polyadenylation suggests that polyadenylation occurs post-transcriptionally in the nucleus. Therefore, polyadenylation occurs after RNA synthesis is complete.