A recent study highlights the importance of spliceosome components by showing that a rare genetic disease is caused by a mutation in asnRNP. The spliceosome is a machine made of several snRNPs. These molecular scissors cut precisely the right location on the DNA to remove an intron and promote the ligation of exons. Prokaryotes appear to do just fine without introns.
So what is the purpose of introns? What overall function do they provide for eukaryotes? Why use such a complex splicing operation for a function which appears to do nothing more than rejoin exon regions? How do evolutionary biologists propose that snRNPs and spliceosomes evolved? Is this good design or is this entire process wasteful and therefore not good evidence for design in nature?