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.
The 15 most expensive houses for sale in America. When it comes to the most expensive homes in the US, there are only a handful of cities in the game. And behind each lavish listing is a rich and famous homeowner like Demi Moore, Tommy Hilfiger, or Steve Cohen.