DNA

• What is the structure of DNA?

  Double-stranded molecule with antiparallel strands
• What forms the sugar-phosphate backbone of DNA?

  Alternating deoxyribose sugars and phosphate groups
• What are the purines found in DNA?

  Adenine (A) and Guanine (G)
• What are the pyrimidines found in DNA?

  Thymine (T) and Cytosine (C)
• How do adenine and thymine pair in DNA?

  A pairs with T using 2 hydrogen bonds
• How do guanine and cytosine pair in DNA?

  G pairs with C using 3 hydrogen bonds