1. Sugar: DNA contains deoxyribose sugar, while RNA contains ribose sugar. The difference is a single oxygen atom, but it has significant implications for the molecules' stability and function.
2. Nitrogenous Bases: Both DNA and RNA have adenine (A), guanine (G), and cytosine (C). However, DNA has thymine (T), while RNA has uracil (U) in its place. This difference is crucial for the pairing of bases and the formation of the double helix structure.
3. Structure: DNA exists as a double helix, with two strands of nucleotides paired and wound around each other. RNA is typically single-stranded, though it can fold into complex 3D structures.
Let me know if you'd like to delve deeper into any of these differences or have other questions!
