DNA Base Pair Necklaces: Adenine-Thymine & Cytosine-Guanine

Nucleotides, the building blocks of DNA, contain nitrogenous bases—cytosine (C), guanine (G), adenine (A), or thymine (T)—along with deoxyribose sugar and a phosphate group. They form a double helix through hydrogen bonds: A pairs with T, and C pairs with G. Choose from Adenine-Thymine (A-T) or Cytosine-Guanine (C-G) pairings for these 17-inch necklaces, adjustable up to 19 inches, with a 1-inch nucleotide charm. Ideal for couples or best friends, symbolizing the unique bond shared between pairs.