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 25 most expensive housing markets in the US. The most expensive housing markets in America are primarily packed into one state: California. The Golden State dominates Coldwell Banker's annual Home Listing Report, which ranks the most expensive places to purchase homes in America, claiming every spot in the top 10 and 18 total out of the top 25.