What does a nucleotide contain?

Hydrogen bond is present in which two pairs of bases in the double helix structure of $DNA$?

Which pyrimidine bases are present in $DNA$?

Codon is present in

Identify the nitrogen atom that does not contribute to the basicity of the compound shown in the structure.

When $RNA$ is hydrolysed,there is no relationship among the quantities of different bases obtained. What does this fact suggest about the structure of $RNA$?