<P> The Clastosome would be an important addition to the' Cell Nucleus' Wiki page because it plays a role in cell function . With further research, we may discover that this nuclear body has a more influential job in cell function than what is already known . </P> <P> The nucleus provides a site for genetic transcription that is segregated from the location of translation in the cytoplasm, allowing levels of gene regulation that are not available to prokaryotes . The main function of the cell nucleus is to control gene expression and mediate the replication of DNA during the cell cycle . </P> <P> The nucleus is an organelle found in eukaryotic cells . Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material . This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes . </P> <P> The nuclear envelope allows the nucleus to control its contents, and separate them from the rest of the cytoplasm where necessary . This is important for controlling processes on either side of the nuclear membrane . In most cases where a cytoplasmic process needs to be restricted, a key participant is removed to the nucleus, where it interacts with transcription factors to downregulate the production of certain enzymes in the pathway . This regulatory mechanism occurs in the case of glycolysis, a cellular pathway for breaking down glucose to produce energy . Hexokinase is an enzyme responsible for the first the step of glycolysis, forming glucose - 6 - phosphate from glucose . At high concentrations of fructose - 6 - phosphate, a molecule made later from glucose - 6 - phosphate, a regulator protein removes hexokinase to the nucleus, where it forms a transcriptional repressor complex with nuclear proteins to reduce the expression of genes involved in glycolysis . </P>

Which types of cells have genetic material that is contained in the nucleus