Similarities and differences between nucleotides

Difference between nucleotide of DNA and RNA is that one of the four organic bases are differ between the polymers and the similarity is that other three bases are present as same as in both DNA and RNA.

Explanation:

The bases adenine, guanine, and cystone present in both RNA and DNA is the similarity and the base 'thymine in DNA' and 'uracil in RNA' is the difference. It is differ on combination of 3 molecules which are a 'five-carbon sugar', phosphate group and nitrogenous bases. It is varies in the structure of bases. Nucleotide is an 'organic molecule' which is the basic 'building blocks' of RNA and DNA.