• Question: what are genetics?

    Asked by chrissythewissy to Noel on 11 Mar 2015.
    • Photo: Noel Carter

      Noel Carter answered on 11 Mar 2015:

      Genetics is the study of how DNA is passed from one generation to the other. How the DNA code works and how it makes us human, or a mouse or a snail.

      DNA comprises of four chemicals that we shorten to the letters A C G and T. In every human cell (apart from red blood cells) we have a DNA molecule that is 3.2 billion base pairs long.

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