Types: Adenine, Thymine, Guanine, and Cytosine
Represented by: the letters A, T, G, and C
Shape: DNA is like a twisted ladder with steps that are made up of four bases called base pairs
Characteristics: A is always paired with T, T is always paired with A, C is always paired with G, and G is always paired with. . . you got it, C!
Importance: these bases form the genetic code for all living things
