The sequence of bases on DNA codes for the sequence of amino acids in proteins. But there are 20 different amino acids and only 4 different bases, so the bases are read in groups of 3. This gives 64 combinations, more than enough to code for 20 amino acids.
10 cheapest places to live in the U.S. Ashland, Ohio, ranks as the 10th most affordable city in the U.S., according to the Council for Community and Economic Research. Ashland has a cost of living index of 87.6.
Indianapolis, Indiana. Ranked in 2009 by Forbes Magazine as the most affordable place to live in the United States, Indianapolis, Indiana has many conveniences of a large city while maintaining a small-town atmosphere. The 1.75 million residents enjoy the cultural downtown area with winding bike paths, historical buildings and a flowing water canal.