Organisms produced as a result of binary fission do not exhibit great deal genetic variation. Binary fission is a form of asexual reproduction in which a single-celled organism divides into two identical daughter cells. Since the daughter cells are genetically identical to the parent cell, there is no genetic variation between them. Recombination does not occur in asexual reproduction. Genetic variation is essential for evolution and adaptation to changing environments. However, binary fission is an efficient and rapid method of reproduction that allows organisms to quickly increase their population size in stable environments where genetic variation is not necessary.