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.
America's 100 Cheapest Places To Live. Edited by Lucy Maher, 07.14.09, 04:00 PM EDT. Americans are swapping their expensive lives on the urban coasts and reaching for greener pastures elsewhere. North Carolina and Colorado are a magnet for newcomers, according to the most recent Census population estimates. There, you'll find more than