Question

Give two differences between DNA and RNA.

Hint:

An easy way to remember: DNA = Double stranded, Deoxyribose. RNA = Ribose, and "U" comes after "T" alphabetically? No, just remember U replaces T.

Answer 1

1. Sugar: DNA contains the sugar 2-deoxyribose, whereas RNA contains the sugar ribose.
2. Nitrogenous Bases: DNA contains the pyrimidine base Thymine (T). RNA contains Uracil (U) instead of Thymine. (Both contain Adenine, Guanine, and Cytosine).
3. Structure: DNA usually exists as a double-stranded helix. RNA usually exists as a single-stranded molecule.