How Did Crick Use The DNA Code For Proteins

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Crick discovered the structure of DNA in 1953 and others discovered the genetic code a few years after. The old idea of genes as beads on a string, chromosomes, seemed to gain its vindication from the Watson and Crick model. Each of the three nucleotides in the DNA codes for an amino acid , a string of amino acids makes a protein. Many genes are separated by DNA sequences of nucleotides that are not transcribed into RNA. Proteins are coded by partial sequences on two or more chromosomes. Only a small percentage of DNA codes for proteins are higher than the organisms. In humans DNA codes for proteins are only one percent but not higher than two percent. Many of the rest contain sequences that are repeated over and over again.
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