hauberk (plural hauberks) A coat of mail; especially, the long coat of mail of the European Middle Ages, as contrasted with the habergeon, which is shorter and sometimes sleeveless. 1786, Francis Grose, A Treatise on Ancient Armour and Weapons, page 14: The hauberk was a complete covering of mail from head to foot. It consisted of a hood, joined to a jacket with sleeves, breeches, stockings and shoes of double chain mail, to which were added gauntlets of the same construction.
1 Exons are expressing sequences within a pre-mRNA molecule that are spliced together once introns are removed to form mature mRNA molecules that are translated into proteins.  Alternative splicing allows for the production of various protein isoforms from one single gene coding.
Post-Transcriptional RNA Processing. Overview of Post-Transcriptional RNA Splicing. Prokaryotic DNA transcription produces messenger RNA, which is necessary for transfer from the cell nucleus to the cytoplasm where translation occurs. In contrast, eukaryotic DNA transcription takes place in a cell's nucleus and produces what is called a primary RNA transcript or pre-messenger RNA.