What is relationship between nucleotide sequence in DNA and amino acid sequence in a protein molecule?
Only a small proportion of the genome codes for protein sequence. These regions of protein coding sequence reside within genes and are called exons. Within the exons, a group of three bases (known as a codon) will code for one amino acid. There is some degeneracy in the code; that is, for some amino acids there is more than one codon (group of three bases) that will code for a specific amino acid (see codon table for specific translation).
