Primary Structure. 1  Proteins are made up of polypeptide chains, which are amino acids joined together with peptide bonds. 2  The unique sequence of amino acids that make up a protein or polypeptide chain is called the Primary Structure.
Put your uncooked brats on a broiler pan and pop them in the oven, cooking them for about five minutes at a time on each side. Keep turning them until they brown up nicely and are good to go. This should take 15-20 minutes for uncooked brats and just 5-10 minutes for precooked bratwurst.
Pour 2 (12 ounce) bottle of beer in a 3 qt pot. Add butter to melt. Let it get hot first and add the bratwurst and sliced onions inches Cook, simmering the beer and turning the brats every 10 minutes for about 30 to 45 minutes (use your own judgment). Let the beer evaporate and reduce it until it is syrupy and to where it looks like it is coating the bratwurst well.