Which of the following statements about RNA splicing is false?
(a) Conventional introns are not found in bacterial genes.
(b) For a gene to function properly, every exon must be removed from the primary transcript in the same fashion on every mRNA molecule produced from the same gene.
(c) Small RNA molecules in the nucleus perform the splicing reactions necessary for the removal of introns.
(d) Splicing occurs after the 5' cap has been added to the end of the primary transcript.
Answer: B