It is now known that there are four groups of them, and studies in Tetrahymena elucidated what happens in Group I.
It is now known that there are four groups of them, and studies in Tetrahymena elucidated what happens in Group I. The earliest physical evidence of them was found in the beta-globin gene in mice, though the ovalbumin gene in chicken has been found to contain a more extensive set. Their removal was first identified via a self-excision process and the possible use of a complex known as a spliceosome. FTP, identify these nucleotide segments that are not expressed in the final mRNA product unlike their analog, the exons.
It is now known that there are four groups of them, and studies in Tetrahymena elucidated what happens in Group I.
{intron}s