DNA is Deoxyribonucleic Acid found in the nucleus of the cell. The building blocks are nucleotides that have three main groups. There are four types of nitrogenous bases, guanine, cytosine, thymine, and adenine. Guanine and Adenine are purines and have two carbon chains. Cytosine and Thymine are pyrimidines, which are similar and not as large as purines. Deoxyribose sugars and a phosphate group complete the nucleotide. Adenine bonds with Thymine and Guanine bonds with Cytosine, creating complementary base pairings. A double helix has two parallel strands with linear sequence ACGT. The order of the strand determines the DNA’s instruction.
Made by Ximena and Phoebe Click on any part of the DNA to learn about it Click "Nucleotide" to see how it all fits together Click "View" to switch DNA views (The deoxyribose and phosphate groups would be made of pipe cleaners, and the hydrogenous bases would be made from color-coded beads in a real-life example)
