6 | The Genetic Code

The Genetic Code

  • The order of the four different nucleotides in DNA molecules, known as a DNA sequence, determines the genetic make-up of an organism.
  • This ‘genetic code’ is the same for all organisms. Therefore, DNA differentiates not only individuals of a species, but all living things on Earth.
  • The genetic code works in much the same way as the 26 letters of the English alphabet, which code for all the English-language books that exist.

genetic code dna sequence

The sequence of nucleotides in DNA encodes the genetic make-up of all living things.

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