Question

The pentose sugar in $DNA$ and $RNA$ has the

• A. open chain structure
• B. pyranose structure
• C. furanose structure
• D. All of the above

Answer 1

Answer: (C)

furanose structure

Answer 2

Ribose and deoxyribose are $5$ carbon sugars which are found in RNA and DNA. They have a furanose structure that is a $5$ membered ring system with $4$ carbon atoms and one oxygen atom.