How is a specific protein formed from DNA?

You need to have some basic knowledge of nucleotide structure before trying to understand the answer below. First of all, DNA contains thousands of genes. Each gene codes for specific proteins (The ‘code’ means that the gene contains instructions on how to produce that particular protein). The gene contains a sequence of nucleotide bases (e.g. A, T, C, G), where a sequence of three bases, known as base triplet, can code for one specific amino acid (e.g. bases A+C+G = Threonine amino acid).Finally, there are 20 different amino acids. Different number and different order of amino acids would synthesise a particular protein.