alternative splicing

in prokaryotes only self spilicing and tRNA splicing are present there is no splicosomes are present.

cyctic fibrosis and spinal muscular atrophy(sma)

Alternative splicing permits a single gene to code for more than one polypeptide. In alternative splicing, certain exons of a gene may be included or excluded from the messenger RNA used to code for proteins.

An alternative RNA splicing is a process by which the exons of the RNA produced by the transcription of a gene are reconnected in multiple ways during RNA splicing, so as to allow production of multiple forms of protein from one gene.