<prompt> True about apoptosisIncrease in lysosomal enzymeIncrease in caspasesPhosphatidyl serine has impoant roleIntemucleosomal cleavage of nucleus  <response>: Apoptotic DNA fragmentation is a key feature of apoptosis, a type of programmed cell death. Apoptosis is characterized by the activation of endogenous endonucleases, paicularly the caspase-3 activated DNase CAD, with subsequent cleavage of nuclear DNA into internucleosomalfragments of roughly 180 base pairs bp and multiples thereof 360, 540 etc.. The apoptotic DNA fragmentation is being used as a marker of apoptosis and for identification of apoptotic cells Ref guyton and hall textbook of medical physiology 12e pg 40 and robbins 9e pg 18 