DNA

• DNA is a large molecule essential for life

  it encodes the genetic instructions for the development and functioning of living organisms and viruses
• DNA consists of 2 polymer chains

  which are made from 4 different monomers , called nucleotides :

  • G / A / T / C

  in the form of a double helix
• other naturally occurring polymers:

  • proteins (polymers of amino acids)
  • starch (polymer of glucose)
  • cellulose (polymer of glucose)