What Are Three Similarities Of DNA And RNA?

1.  Both contain Nitrogenous bases of Adenine, Cytosine and Guanine
2.  The sugar of both is linked to a phosphate group and a nitrogenous base
3.  Polymer of nucleotides

1) both in nucleus
2) both have adenine, cytosine, and guanine
3)have purine and pyrimidine nitrogenous bases