The genetic code
Lesson 5 / 9
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I can describe how instructions for making proteins are coded into DNA.
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DNA is a polymer of four different nucleotides (A, C, G and T).
Proteins are polymers of amino acids.
The sequence of nucleotides in a gene determines the order of amino acids in a protein.
Each set of three nucleotides is a triplet code that corresponds to an amino acid, this code is universal.
Different organisms have different sequences of nucleotides in their DNA, but share this common coding system.
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