what do dna nucleotides pair
The nucleotides found in a DNA are Adenine, Guanine, Thiamine and Cytosine and in an RNA it is Adenine, Guanine, Uracil and Cytosine. Adenine always pairs with Thiamine and Cytosine pairs with Guanine in a DNA. RNA is generally single stranded but in cases where it is double stranded the same rules apply but here Adenine pairs with Uracil. The A-T and A-U bond is double bonded whereas the G-C bond is single stranded..