Apoptosis is genetically controlled death. In this process, unnecessary body cells or organs die. Apoptosis is the destruction or death of tissue between human fingers. Apoptosis causes red blood cells, white blood cells and platelets to die after a certain period of time. If these cells survive for a long time, they can become cancer. The role of apoptosis in human body is-
(i) Finger differentiation during embryonic development is by apoptosis.
(ii) Dorsal neural tube closure due to apoptosis.
(iii) Remnants of dying organelles (pro-nephrons) are removed from the body by apoptosis.
(iv) Wolffian ducts are removed by apoptosis during embryonic sex determination.
(v) Residual tissue between the umbilical cord and the sac is removed by apoptosis during embryonic development.