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HESI BiologyTwo nucleic acids

DNA vs RNAHESI A2 cheat sheet

Two nucleic acids

10 key facts Reviewed Oct 2026
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Dna

  • Double-stranded helix
  • Sugar is deoxyribose
  • Bases A, T, C, G
  • Stays in the nucleus

Rna

  • Single-stranded
  • Sugar is ribose
  • Uses uracil in place of thymine
  • Travels to the cytoplasm

Rna Types

  • mRNA carries the message · tRNA brings amino acids · rRNA builds the ribosome

Pairing

  • DNA: A–T, C–G. In RNA: A–U, C–G
Key takeaway

Two nucleic acids

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