Define neucleoside. Give the name of the nucleoside present in DNA and RNA.

Nucleosides are glycosamines made by attaching a nucleobases (often referred to simply as bases) to a ribose or deoxyribose ring. In short, a nucleoside is a base linked to sugar.These include cytidine, adenosine, guanosine, thymidine in DNA and uridine in RNA at the place of thymidine.