Cell biology kessatti, nucleus (plural nuclei; Latin irra Template:''nucleus'' or Template:''nuculeus'', kernel) organelle membraneniin marfamee argamu yoo ta’u kan itti argamus eukaryotic cells bayye kessa. Nucleusiin genetic material DNA molecule irra midhafamani kan protein akka histone wajjin walitti xaxamani chromosome jedhamani ofii kessa qaba. Geneotni chromosome kessatti argaman nuclear genome celli kessatti argaman jalatti argamu. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression.