Three differences: 1. DNA is double-stranded and RNA is single-stranded 2. DNA contains thymine whereas RNA contains uracil 3. DNA lacks one oxygen molecule compared to RNA
Work Step by Step
DNA is a double-stranded helix and RNA is single-stranded. During transcription, RNA polymerase uses uracil to build the mRNA instead of thymine. Additionally, DNA lacks one oxygen molecule on the pentose compared to RNA.