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.
CNBC: Maryland 9th Most Expensive Place to Live. An average home in the DC suburbs will cost you half a million dollars, the cable network says. When comparing the costs of everything from real estate to red meat, Maryland is one of the most expensive places in the United States to call home, according to a survey of the 50 states by CNBC.