The nucleotides are joined to one another in a chain by covalent bonds between the sugar of one nucleotide and the phosphate of the next, resulting in an alternating sugar-phosphate backbone.
Nukleotida mabesikan sareng sané tiosan sangkaning ranté kovalen pantaraning gula saking asiki nukleotida miwah fosfat raris ngasilang tulang tundun gula-fosfat salegenti.