Which bases has double and triple hydrogen bond?

Double-stranded DNA consists of two polynucleotide chains whose nitrogenous bases are connected by hydrogen bonds. Within this arrangement, each strand mirrors the other as a result of the anti-parallel orientation of the sugar-phosphate backbones, as well as the complementary nature of the A-T and C-G base pairing. #doublestrandedDNA #genetics #hydrogenBonds #sugarphosphateBackbones