 The cell nucleus contains the majority of the cell 's genetic material in the form of multiple linear DNA molecules organized into structures called chromosomes . Each human cell contains roughly two meters of DNA . During most of the cell cycle these are organized in a DNA @-@ protein complex known as chromatin , and during cell division the chromatin can be seen to form the well @-@ defined chromosomes familiar from a karyotype . A small fraction of the cell 's genes are located instead in the mitochondria . 
 The cell nucleus <a href='uninflect' title='1'><mark>contains</mark></a> the majority of the cell <a href='null_genetive' title='2'><mark>'s</mark></a>genetic material in the form of multiple linear DNA molecules organized into structures called chromosomes . Each human cell <a href='uninflect' title='3'><mark>contains</mark></a> roughly two meters of DNA . During most of the cell cycle these are organized in a DNA @-@ protein complex known as chromatin , and during cell division the chromatin can be seen to form the well @-@ defined chromosomes familiar from a karyotype . A small fraction of the cell <a href='null_genetive' title='4'><mark>'s</mark></a>genes are located instead in the mitochondria . 
Da cell nucleus contain tdamajority of thdaell  genetic material in the form of multiple linear DNA molecules organized into structures called chromosomes . Each human cell contain roughly 2 meters of DNA . During most of thedall cycle dese r organized in a DNA @-@ protein complex known as chromatin , and during cell division the daomatin can be seen to form the wda @-@ defined chromosomes familiar from a karyotype . A small fraction of the ceda genes are located instead in the mitdaondria .