<prompt> Nucleoside is made up of: 1. Pyrimidine 2. Histone 3. Sugar 4. Purine 5. Phosphate1,2 31,3 41,3 52,3 4  <response>: The nucleoside is composed of purine purine or pyrimidine base linked to either D-ribose in RNA or D-2- deoxyribose in DNA The nuclear DNA is found bounded to basic proteins called histones. Nucleotides Nucleotides are nucleoside P The Phosphodiester bond between the nucleotides is formed mainly between 3OH group of sugar of one nucleotide to 3OH group of sugar of another nucleotide. Ref: Harper 27e, Page 297; Chatterjee shinde 7e, Page 206-07. 