1.Concept of apoptosis Apoptosis is a process of PCD that occurs in multicellular organisms.Biochemical events lead to characteristic cell changes(morphology)and death. These changes include blebbing,cell shrinkage,nuclear fragmentation,chromatin condensation,chromosomal DNA fragmentation,and global mRNA decay. Between 50 and 70 billion cells die each day due to apoptosis in the average human adult.For an average child between the ages of 8 and 14,approximately 20 billion to 30 billion cells die a day. This document is produced by trial version of Print2Flash.Visit www.print2flash.com for more information