The nucleus is a double membrane-bound organelle that contains the cell's genetic material in the form of DNA, which is organized into structures called chromosomes. The cell nucleus is a membrane-bound structure that contains the cell’s hereditary information and controls the cell’s growth and reproduction. It is the command center of a eukaryotic cell and is commonly the most prominent organelle in a cell accounting for about 10 percent of the cell’s volume. In general, a eukaryotic cell has only one nucleus. However, some eukaryotic cells are enucleated cells (without a nucleus), for example, red blood cells (RBCs); whereas, some are ... The cell nucleus (from Latin nucleus or nuculeus 'kernel, seed'; pl.: nuclei) is a membrane-bound organelle found in eukaryotic cells. Eukaryotic cells usually have a single nucleus, but a few cell types, such as mammalian red blood cells, have no nuclei, and a few others including osteoclasts have many. The main structures making up the nucleus are the nuclear envelope, a double membrane that encloses the entire organelle and isolates its contents from the cellular cytoplasm; and the ... What is the structure of the nucleus? How is genetic information stored in the nucleus? What is the nucleolus? How does the nucleus communicate with the rest of the cell? What is the role of the nuclear matrix? What are nuclear bodies? How does the nucleus replicate its DNA during cell division?
