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.
Top 10 Most Expensive U.S Cities To Live. Q : Which is the Most Expensive City to Live in United States of America? Ans : Manhattan, New York has become once again the most expensive city to live in U.S. In 2012, it has the cost of living index of 225.4 making it the most expensive us. City which is more than the double of national average.