Sugars are essential components of nucleic acids.

a) Provide the precise chemical description (anomer, isomer and either pyranose or furanose form) of the circular stereoisomers that are formed by ribose in cells.

b) Which circular stereoisomer (anomer, isomer and either pyranose or furanose form) is found in DNA?

c) Using the language of the unit, give an explanation whether the sugar components of DNA are reducing sugars?