These structures are stabilized by hydrogen bonding between the edges of the bases and chelation of a metal ion in the centre of each four-base unit.. 
Adio Olayinka Ayoola Abayomi Olowokulolooya akọkọ ni ile Naijirialọ́yà akọkọ ni ile Naijiria ti o jẹ ọmọ Naijiria ni Williams Alexander Sapara Williams.. 