White is an achromatic color, a color without hue. Light with a spectral composition that stimulates all three types of the color sensitive cone cells of the human eye in nearly equal amounts appears white.
The nucleolus is contained within the cell nucleus. The nucleolus (/nuËËkliËÉµlÉs/ ; plural nucleoli /nuËËkliËÉµlaÉª/) is the largest structure in the nucleus of eukaryotic cells, where it primarily serves as the site of ribosome synthesis and assembly.he nucleolus is contained within the cell nucleus. The nucleolus (/nuËËkliËÉµlÉs/ ; plural nucleoli /nuËËkliËÉµlaÉª/) is the largest structure in the nucleus of eukaryotic cells, where it primarily serves as the site of ribosome synthesis and assembly.
In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel) is a membrane-enclosed organelle found in eukaryotic cells. Eukaryotes usually have a single nucleus, but a few cell types have no nuclei, and a few others have many.Cell nuclei contain most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes.he genes within these chromosomes are the cell's nuclear genome. 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 âthe nucleus is, therefore, the control center of the cell.