Abstract Despite the fact that introns mean an energy and time burden for eukaryotic cells. they play an irreplaceable role in the diversification and regulation of protein production. As a common feature of eukaryotic genomes. it has been reported that in protein-coding genes. http://www.roneverhart.com/1915-Old-Taylor-Bourbon-Bottled-1933-Prohibition-Bottling-Quart-low-fill/