Suppose that a scientist deletes the aauaaa consensus sequence, the poly(a) tail, or the 5' cap from pre-mrnas in an mrna. she then observes the effects on rna regulation. assign each rna regulation consequence to the type of deletion most likely to result in the consequence. a-introns are not removed from the pre-mrnab-the pre-mrna is not cleaved at the cleavage sitec-the mrna is not transported to the cytoplasm