The Action of a New Drug Is Unknown, So You

Multiple Choice

The action of a new drug is unknown, so you test various aspects of eukaryotic cell processes looking for an effect. You notice that the survival of cells exposed to this drug is very low. Further analysis shows that some proteins and mRNAs are much longer than they should be. One hypothesis is that the drug interferes with

A) transcription termination signals.
B) spliceosome activity.
C) ribosomes.
D) nucleoli.
E) both A and B