DNA the molecule

• The four bases found in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).
• what is DNA?

  a complex molecule that decides characteristic and traits of all organisms
• the structure of dna consists of two strands twisted around one another to form a double helix
• where is DNA llocated for humans?

  Nucleus
• a nucleotide includes a phosphate group, sugar called deoxyribose and nitrogenous base
• the sugar is DNA is the ribose/ deoxyribose
• A always pairs with T
• C always pairs with G
• A,T,G,C are all complimentary bases
• the double helix has a sugar and phosphate pattern for the backbone
• the complimentary bases can only be joined onto the sugar part of the double helix