Nitoripe awon atinrin ko wa niwaju ara won, awon ibitooro lo ni itobi didogba.. 
The main function of these rẹ́gíons is to allow the cell to replicha chrọ̀mọ́some ends using the enzyme telomerase, as the dira that ètò replicha DNA cannot copy the extreme 3' ends of chrọ̀mọ́somes.. 