DNA

• DNA is a very large molecule
• Why is DNA essential for life?

  It stores and transmits the instructions for the development of living organisms and some viruses
• DNA is made from two polymer chains constructed from four different nucleotides , what are they?

  Cytosine (C) , Guanine (G) , Adenine (A) , and Thymine (T)
• What do the two polymer chains (that DNA is made from) form?

  A double helix (spiral)