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Phosphorylation of which protein(s)’s C-terminal domain tail serves as the timer and spatial organizer of eukaryotic transcription?

If you perform a genetic experiment in E. coli such that you replace the bacterial RNAP with yeast RNA Pol II, which of the following would you most likely find?

In the “Christmas Tree diagram of rRNA transcription, which of strands represents the coding strand?

In between the first and second transesterification reactions of RNA splicing, the intron of the pre-mRNA

Which of the following are functions of mediator complexes? (select all that apply)

The mediator complex components differ between organisms but otherwise stay the same in each cell type

In between the first and second transesterification reactions of RNA splicing, the intron of the pre-mRNA

What is the nucleophile of the first splicing transesterification reaction?

An RNA processing event that frequently leads to different protein products encoded by a single gene is:

Diseases such as Huntington’s are caused by: