Assume that a mutation affects the gene for each of the following eukaryotic RNA polymerases. Match each mutation with the possible effects from the list provided. More than one effect is possible for each mutation.

RNA Polymerase Mutation       Effect(s)
RNA pol I                                  _______________
RNA pol II                                 _______________
RNA pol III                                _______________
snRNA                                      _______________

Some pre-mRNA is not synthesized.