Sequence DNA for Yourself

  • By Rick Groleau
  • Posted 04.17.01
  • NOVA

A single DNA nucleotide, the base unit of the human genome, is a tiny, tiny thing. Each one is made up of only 30 atoms—plus or minus a few, depending on the base—making it much too small to be identified by even the most powerful electron microscope. So how do researchers determine the sequence of A's, G's, C's, and T's that comprise the genome? Find out in this animated interactive.

Launch Interactive

How do researchers read the tiny A's, G's, T's, and C's that comprise DNA? Find out in this step-by-step interactive.

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