NCERT · Class 12 · Chemistry · BiomoleculesMention two important structural differences between DNA and RNA.
Step-by-Step Solution
Firstly, the sugar molecule present in DNA is 2-deoxy-D-ribose, whereas RNA contains D-ribose sugar. Secondly, DNA contains the pyrimidine nitrogenous base thymine along with adenine, guanine, and cytosine, while RNA contains uracil instead of thymine. Additionally, DNA usually has a double-stranded helical structure and stores genetic information, whereas RNA is mostly single-stranded and functions primarily in protein biosynthesis within living cells.
💡 Study Guide: This question tests core syllabus concepts from Biomolecules. For formulas, key summaries, and mock exam reference guides, read the full Biomolecules Revision Notes.