Answer:
Adenine,Thymine,Guanine,Cytosine are nitrogenous base pairs of DNA
Explanation:
Due to base pairing rule Adenine binds with thymine and guanine binds with Cytosine.1 purine+1 pyrimidine. The imidazole ring of purine attaches with pyrimidine ring.Two purines never fit between the two strands of DNA.Therefore hydrogen bond (H-bond) connects these two bases by means of N1 and amino acid. These bases make up a nucleic acid.Adenine binds with thymine with 2 (H-bonds) and similarly guanine binds with cytosine with 3 (H-bonds). This binding follows the Erwin Chargaff's Rule
