Wood/Barrel Aged Beer Subcategory: Wood/Barrel Aged Pale Beer A wood- or barrel-aged pale to amber beer is any lager, ale or hybrid beer, either a traditional style or a unique experimental beer that has been aged for a period of time in a wooden barrel or in contact with wood, that meets the criteria for color shown below.
Eukaryotic Cell. Transcription and translation are spatially and temporally separated in eukaryotic cells; that is, transcription occurs in the nucleus to produce a pre-mRNA molecule. The pre-mRNA is typically processed to produce the mature mRNA, which exits the nucleus and is translated in the cytoplasm.
1 In eukaryotes, transcription occurs in the nucleus, and translation occurs in the cytoplasm. 2  Most eukaryotes contain two copies of each gene (i.e., they are diploid). 3  Some eukaryotic genomes are organized into operons, but most are not. 4  Extrachromosomal plasmids are not commonly present in eukaryotes.