Packaging DNA

    Cards (4)

    • What is the bulk of DNA formed of?
      proteins involved in packaging the DNA
      ONE OF THESE PROTEINS IS CALLED HISTONE
    • What is histone?
      A positively charged protein containing high concentrations of amino acids with additional base groups (-NH2) eg lysine and arginine
    • What is DNA wrapped around?
      histones
    • DNA is wrapped around histones
      This process continues to repeat and the bead like thread coils up to form CHROMATIN
      These coils then loop again around a scaffold protein made of non-histone fibre
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