ABSTRACT

Two unique processes must be present for these cells to contain the proper DNA. These processes are called mitosis and meiosis. Mitosis is ordinary cell division. Meiosis is the process by which sperm and egg cells are formed in a manner that allows them to join together to start a new life. Detailed descriptions of these can be found in any standard textbook on genetics.[2-4]

MITOSIS

DNA is organized into genes that reside on chromosomes. In animals, the chromosomes are linear DNA-protein complexes that reside in the nucleus of cells. Each species has a characteristic number of chromosomes (Table 1).[5]

Mitosis is the process by which one cell becomes two cells. Each life begins as a single cell, and billions of mitoses enable the organism to grow and mature. New cells replace those that are no longer viable or are lost. Yet each of those cells, with only a few exceptions, contains the same genetic information. The process of mitosis allows this to happen properly.