DNA is found within the nucleus of all cells. DNA are our genes or our 'blue-print'.
DNA is a large polymer...made up of NUCELOTIDES. (take this time to review your organic macromolecules!!) Here is a sketch of a nucleotide...
The shape of DNA is a DOUBLE HELIX...which is simply just 2 strands twisted together...think of a spiraled staircase, twisted ladder or a zipper
The backbone of DNA is made up alternating of PHOSPHATE and DEOXYRIBOSE (a sugar).
The bases of DNA are: Adenine (A), Cytosine (C), Thymine (T) and Guanine (G). These are the only bases found in DNA. The bases will always, always, always pair up A-T and C-G...no ifs, ands or buts!!
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