Dr. Dre has had four sons and two daughters, by five different women. In 1981, Dr. Dre and Cassandra Joy Greene had a son named Curtis Young when Dr. Dre was 16 years old and Greene was 15 years old. Curtis Young is an aspiring rapper who goes by the rap moniker Hood Surgeon.: 19
When cells divide, they make new cells. A single cell divides to make two cells and these two cells then divide to make four cells, and so on. We call this process cell division and cell reproduction, because new cells are formed when old cells divide. The ability of cells to divide is unique for living organisms.
Cell division is observed in all organisms and is a requirement for reproduction, growth, and development. Many cells also undergo structural changes as they differentiate, such as the outgrowth of axonal and dendritic processes during nerve cell differentiation. A more subtle form of cell motility involves the active transport of membranous organelles within the cytoplasm. This form of movement is required for proper organization of the cytoplasmic contents, and the redistribution of metabolites, hormones, and other materials within the cell.